All products · 49 of 1440
Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
ASUS Dual Radeon RX 7600 EVO OC Edition 8GB GDDR6 Graphics Card
[Graphics Card] ASUS Dual Radeon RX 7600 EVO OC Edition 8GB GDDR6 Graphics Card The ASUS Dual Radeon RX 7600 EVO OC Edition combines dynamic thermal performance with broad compatibility. Advanced cooling solutions from flagship graphics cards — including two Axial-tech fans for maximizing airflow to the heatsink — are packed into the 22.8 cm long, 2.5-slot card, delivering more power in less space. ⭐ Key Features - Axial-tech fan design features a smaller fan hub that facilitates longer blades and a barrier ring that increases downward air pressure - 0dB technology lets you enjoy light gaming in relative silence - Dual ball fan bearings can last up to twice as long as sleeve bearing designs - A 2.5-slot design allows for greater build compatibility while maintaining premium cooling - Auto-Extreme precision automated manufacturing for higher reliability - GPU Tweak III software provides intuitive performance tweaking, thermal controls, and system monitoring 📋 Technical Specifications - Graphic Engine: AMD Radeon RX 7600 - Bus Standard: PCI Express 4.0 - OpenGL: OpenGL 4.6 - Video Memory: 8GB GDDR6 - Engine Clock: OC mode up to 2745 MHz (Boost Clock) / 2340 MHz (Game Clock) - Stream Processors: 2048 - Memory Speed: 18 Gbps - Memory Interface: 128-bit - Resolution: Digital Max Resolution 7680 x 4320 - Interface: 1x HDMI 2.1a, 3x DisplayPort 1.4a (HDCP 2.3 Support) - Maximum Display Support: 4 - Recommended PSU: 550W - Power Connectors: 1 x 8-pin - Dimensions: 228 x 123 x 49 mm (2.5 Slot) 🎯 Applications - 1080p and 1440p high-framerate competitive esports and AAA gaming - Content creation with AV1 hardware encoding - Compact Micro-ATX and Mini-ITX small form-factor gaming builds 📦 Package Includes - 1 x ASUS Dual RX 7600 EVO OC 8GB Graphics Card - 1 x Collection Card & Speedsetup Manual
Gigabyte GeForce RTX 5050 Windforce OC 8GB GDDR6 Graphics Card
[Graphics Card] Gigabyte GeForce RTX 5050 Windforce OC 8GB GDDR6 Graphics Card Next-generation GeForce RTX 50 series GPU featuring cutting-edge Blackwell architecture, dedicated ray tracing cores, tensor cores, and DLSS 4 with multi-frame neural reconstruction. The WINDFORCE cooling system features two unique blade fans, alternate spinning, composite copper heat pipes, and 3D active fan functionality. ⭐ Key Features - NVIDIA Blackwell GPU Architecture - 8GB GDDR6 128-bit high-bandwidth memory - WINDFORCE cooling system with alternate spinning fans - Screen cooling extended heatsink allows airflow to pass through - Protection back plate provides structural rigidity and aesthetic polish - Factory Overclocked core clock out of the box 📋 Technical Specifications - Graphic Processor: NVIDIA GeForce RTX 5050 - Memory: 8GB GDDR6 - Memory Bus: 128-bit - PCI Express: PCIe 5.0 x8 / x16 compliant - Outputs: 2x DisplayPort 2.1, 2x HDMI 2.1b - Max Resolution: 7680 x 4320 @ 120Hz - Power Connectors: 1x 8-pin PCIe - Recommended PSU: 500W 🎯 Applications - High-FPS 1080p & 1440p gaming with full Ray Tracing & DLSS - AI model inference, Stable Diffusion, and LLM workstation tasks - Video editing and color grading in DaVinci Resolve & Premiere Pro 📦 Package Includes - 1 x Gigabyte RTX 5050 Windforce OC 8GB Graphics Card - 1 x Quick Start Manual
Samsung 990 Pro 2 TB NVMe (Gen 4)
Flagship Gen 4 NVMe. 7450/6900 MB/s. Best-in-class for fast game loads + scratch disks. Optional heatsink version recommended.
Only 2 leftCrucial T700 1 TB NVMe (Gen 5)
PCIe 5.0 SSD. 11700 MB/s sequential read. Future-proof — needs Z790 / X670E with Gen 5 M.2 slot and the bundled heatsink.
WD Black SN850X 2 TB NVMe (Gen 4)
Gaming-tuned PCIe 4.0 SSD. 7300/6600 MB/s, optional heatsink, PS5 compatible.
Out of stockADATA XPG Spectrix D50 16GB (2x8) DDR4-3200
RGB heatsink dual-channel kit, CL16. Budget-friendly RGB.
Out of stockTeamGroup T-Force Vulcan Z 16GB (2x8) DDR4-3200
Sleek aluminium heatsink, CL16, no RGB. Budget kit.
Out of stockASUS PCE-AX58BT WiFi 6 PCIe Adapter
WiFi 6 + BT 5.0 PCIe card, 2.4 Gbps. Heatsink-cooled.
Gigabyte GeForce RTX 5050 Windforce OC V2 8GB GDDR6 Graphics Card
[Graphics Card] Gigabyte GeForce RTX 5050 Windforce OC V2 8GB GDDR6 Graphics Card Refined V2 iteration featuring optimized PCB routing, upgraded thermal pads, and enhanced WINDFORCE aerodynamic fan blade contours for quieter high-load operation. ⭐ Key Features - Blackwell architecture with 4th Gen Tensor Cores - Upgraded V2 thermal heatsink fin array - Alternate spinning dual fans eliminate turbulence - Direct-touch composite copper heat pipes - Ultra Durable certified chokes and solid capacitors 📋 Technical Specifications - Model: GV-N5050WF2OCV2-8GD - Memory: 8GB GDDR6 - Bus Standard: PCIe 5.0 - Outputs: 3x DisplayPort 2.1a, 1x HDMI 2.1 - Form Factor: 2-Slot ATX 📦 Package Includes - 1 x Gigabyte RTX 5050 Windforce OC V2 8GB Graphics Card - 1 x User Guide
KLEVV Bolt X 16GB (2 x 8GB) 3200MHz CL16 DDR4 Desktop RAM Kit
[Memory] KLEVV Bolt X 16GB (2x8GB) DDR4 3200MHz CL16 Gaming RAM Kit High quality dual-channel DDR4 memory kit featuring pure 99.5% aluminum heatsinks with geometric laser-embossed patterns. Built for Intel Core 10th-14th gen and AMD Ryzen AM4 platforms. ⭐ Key Features - 16GB Dual Channel Kit (2 x 8GB) - 3200MHz XMP 2.0 with fast CL16-18-18 timings - Low-profile 36.7mm height prevents heatsink obstruction - Tested 100% on ASUS, MSI, Gigabyte, and ASRock motherboards 📋 Technical Specifications - Capacity: 16GB (2x 8GB) - Speed: DDR4 3200 MHz - Timings: CL16-18-18-38 - Voltage: 1.35V 📦 Package Includes - 2 x KLEVV Bolt X 8GB DDR4 RAM Modules
Out of stockXL4015 5A Buck Converter Module
DC-DC step-down 4-38V to 1.25-36V, 5A, heatsink-mounted.
Out of stockM.2 NVMe to PCIe 3.0 x4 Adapter
Convert PCIe x16 slot into M.2 NVMe (2280/2260/2242). Heatsink-cooled.
3-in-1 Aluminum Heat Sink Set for Raspberry Pi 3
[Aluminium Heat Sink] ❄️ 3-in-1 Aluminum Heat Sink Set for Raspberry Pi 3 High-Quality Aluminum • Self-Adhesive Thermal Tape • Improved Cooling • Easy Installation The 3-in-1 Aluminum Heat Sink Set for Raspberry Pi 3 is a premium cooling accessory designed to improve heat dissipation and maintain stable operating temperatures for Raspberry Pi boards. Manufactured from high-quality aluminum, these heat sinks efficiently transfer heat away from critical components, helping improve performance and extend the life of your Raspberry Pi. The kit includes three aluminum heat sinks of different sizes to cool the processor, Ethernet/LAN controller, and other heat-generating ICs. Each heat sink comes pre-installed with a high-performance thermal adhesive backing, allowing quick and secure installation without the need for additional thermal paste or glue. By reducing operating temperatures, the heat sinks help prevent thermal throttling during continuous operation, making them ideal for overclocking, media centers, home servers, IoT applications, industrial automation, and embedded systems. ⭐ Features Premium-quality aluminum construction Excellent thermal conductivity Self-adhesive thermal tape for easy installation No thermal paste required Lightweight and durable Improves heat dissipation Reduces processor temperature Helps prevent thermal throttling Ideal for continuous operation and overclocking Designed specifically for Raspberry Pi boards Corrosion-resistant aluminum finish Easy peel-and-stick installation 📋 Technical Specifications Product Type: Aluminum Heat Sink Set Compatibility: Raspberry Pi 3 Model A, A+, B, B+ Material: Aluminum Color: Silver Quantity: 3 Heat Sinks Mounting Method: Self-Adhesive Thermal Tape Thermal Interface: Pre-applied Thermal Adhesive Cooling Type: Passive Cooling Weight: Lightweight Installation: Peel-and-Stick 🔧 Applications Suitable for: Raspberry Pi 3 Model B Raspberry Pi 3 Model B+ Raspberry Pi 3 Model A+ Raspberry Pi 3 Model A Raspberry Pi Media Center Home Automation Projects IoT Devices Embedded Systems Robotics Projects Industrial Controllers NAS Servers Retro Gaming Consoles AI Edge Computing Educational Projects DIY Electronics 📦 Package Includes 1 × Large Aluminum Heat Sink (CPU) 1 × Medium Aluminum Heat Sink (LAN/Ethernet Controller) 1 × Small Aluminum Heat Sink (Additional IC / Spare)
3W High Power White LED with Aluminum Heatsink – High Brightness Emitter Module
[LEDs] Upgrade your lighting projects with this 3 Watt High Power LED with Aluminum Heatsink, designed for excellent brightness and long-term reliability. The LED comes pre-mounted on a solid aluminum heatsink that efficiently dissipates heat, ensuring stable performance and extended lifespan. Perfect for DIY electronics, torch lights, spotlights, emergency lights, automotive lighting, and educational projects, this LED module delivers powerful illumination with low power consumption. Easy to install and compatible with standard constant-current LED drivers, this module is a reliable choice for both hobbyists and professionals. 🔹 Key Features High brightness 3W single-chip power LED Pre-mounted aluminum heatsink for effective cooling Long lifespan and stable light output Low power consumption, energy efficient Compact and easy-to-install design Ideal for DIY projects, flashlights, lamps, and experiments 🔹 Specifications Power: 3 Watt LED Type: High Power Single Chip Color : White Forward Voltage: 3.2V – 3.6V (typical) Current: 700mA (recommended constant current) Luminous Flux: ~180 – 240 Lumens (approx.) Heatsink Material: Aluminum Mount Type: Star PCB with attached heatsink Operating Life: Up to 50,000 hours 🔹 Package Includes 1 × 3W High Power LED with Aluminum Heatsink *Image shown is a representation only.
Out of stockTDT 10S 20A NMC Battery Protection and Charger BMS with Balance Hardware
TDT BMS NMC 10S 20A WITH BALANCE Hardware Product Data Sheet The BMS NMC 10S 20A WITH BALANCE (TDT) is a robust and efficient Battery Management System designed for 10-series (10S) lithium-ion NMC battery packs. With a nominal system voltage of 37V and a continuous current capacity of 20A, this module ensures safe and stable operation of high-performance battery packs used in e-mobility, energy storage, and industrial tools. Technical Specifications Battery Chemistry: Lithium-ion (NMC) Configuration: 10S (10 cells in series) input Voltage B+ to B-: -0.3~+20V Overcharge Detection voltage/1CELL: 4.28±0.05V Over discharge Detection voltage/1CELL: 2.8±0.1V Over current: 4-6A Suggest working temperature: -20°C~+60°C Key Features 20A High Current Support Perfect for mid-to-high power battery packs used in electric bikes, scooters, power tools, and solar inverters. Built-in Balancing Function Automatically maintains uniform voltage across all cells to extend overall battery life. Comprehensive Protections Protects against overcharge, over-discharge, overcurrent, short circuit, and thermal runaway. Durable Aluminum Heat Sink Casing Helps dissipate heat effectively for stable thermal performance. Applications Electric Bicycles & Scooters (E-Bikes) Solar Battery Packs & Inverters DIY 10S Battery Pack Projects Cordless Industrial Tools Electric Wheelchairs & Mobility Carts The PCM NMC 10S 20A WITH BALANCE (TDT) is a Battery Protection Circuit Module (PCM) designed for 10 series Nickel Manganese Cobalt (NMC) battery packs, supporting a 20A continuous discharge current. This module is ideal for high-power applications such as energy storage systems, backup power solutions, and electric vehicles. It offers essential protection features, including overcharge, over-discharge, overcurrent, short circuit, and temperature protection, ensuring the safe operation of the battery. The WITH BALANCE feature ensures proper voltage balancing across the cells, optimizing performance and extending the battery’s lifespan. The TDT designation indicates a specific manufacturer or design for reliable battery management.
400W DC-DC Step-up Boost Converter Constant Current Power Supply Module LED Driver Step Up Module
[Step UP Buck Converter] This is a great 400W DC to DC step-up power supply module for electric equipment, digital products, laptop, etc. Input and output are designed with screw terminals for convenient wire connection and disconnection. High efficiency, the maximum conversion efficiency can be 96% and efficiency is related to input/output voltage, current and voltage difference. There are 2 heat sinks that would ensure a better heat dissipation. It can also be used as a driver for high power LED lights or voltage regulator for solar panels. Features: Input and output are designed with screw terminals for convenient wire connection and disconnection. High efficiency, the maximum conversion efficiency can be 96% and efficiency is related to input/output voltage, current and voltage difference. There are 2 heat sinks that would ensure a better heat dissipation. It can also be used as a driver for high power LED lights or voltage regulator for solar panels. Output Voltage/Current Adjustment: Adjust "CV-ADJ" potentiometer clockwise to reduce voltage, counterclockwise to increase voltage. Adjust "CC-ADJ" potentiometer counterclockwise about 30 circles to minimize the output current before connecting to load(clockwise to increase current, counterclockwise to reduce current). Then adjust "CC-ADJ" clockwise to the current value you need. If you use the module for battery charging, connect to output after battery is fully discharged. Because if the more energy is left in battery, the less charging current will be. Specification: Input Voltage: DC 8.5V to 50V Output Voltage: DC 10V to 60V Max. Input Current: 15A Max. Output Current: 12A Quiescent Current: 10mA Constant Current Range: 0.2A to 12A Operating Temperature: -40° to 85° Package Included: 1 x Boost Module 400W DC-DC Step-up Boost Converter Constant Current Power Supply Module 15A Step-Up LED Driver
IC 7812 TO-220 12V Linear Voltage Regulator ST (L78M12CV/L7812CV/LM7812)
[Voltage Regulator IC] LM7812 12V Linear Voltage Regulator IC 7812 The L78M12CV is a three-terminal positive Voltage Regulator with several fixed output voltages, making it useful in a wide range of applications. This regulator can provide local on-card regulation, eliminating the distribution problems associated with single point regulation. Each type employs internal current limiting, thermal shutdown and safe area protection, resulting it essentially indestructible. If adequate heat sinking is provided, they can deliver over 0.5A output current. Although designed primarily as fixed voltage regulators, these devices can be used with external components to obtain adjustable voltage and currents. Features- Thermal Overload Protection Short-circuit Protection Output Transition SOA Protection 4% Output Voltage Tolerance Guaranteed in Extended Temperature Range Applications: Power Management
IC 7805 TO-220 Linear Voltage Regulator LM7805 Made ST
[Voltage Regulator IC] LM7805 5V Linear Voltage Regulator IC 7805 The L78M05CV is a fixed output, three-terminal precision positive voltage regulator in 3 pins TO-220 package. This regulator can provide local on-card regulation by eliminating distribution problems associated with single-point regulation. The L78M05CV fixed voltage regulator is designed with thermal overload protection that shuts down the circuit when subjected to an excessive power overload condition, internal short circuit protection that limits maximum current the circuit will pass and output transistor safe area compensation that reduces the output short circuit as the voltage across the pass transistor is increased. If adequate heat sinking is provided then this positive voltage regulator can deliver over 0.5A output current. Features: Fixed output voltage is 5V Output current is 0.5A Dropout voltage is 2V Maximum DC input voltage is 35V Output transition SOA protection Output voltage tolerance is 4% Operating temperature range 0°C to 125°C Applications: Power Management. Note: Image may vary from actual product in terms of Manufacturer/Brand name according to availability.
30A BLDC ESC Electronic Speed Controller with Connectors
[ESC] 30A BLDC ESC Electronic Speed Controller is specifically made for quadcopters and multi-rotors. Which provides faster and better motor speed control giving better flight performance compared to other available ESCs. 30A BLDC ESC Electronic Speed Controller can drive motors that consume current up to 30A. It works on 2-3S LiPo batteries. This electronic speed controller offers a battery eliminator circuit (BEC) that provides 5V and 2A to the receiver so we don’t need an extra receiver battery. This version of the ESC also includes backward-polarity protection and protection on the 5V receiver line, this means that if you accidentally attach a battery backward it won’t destroy your motor controller and other BEC won’t affect the ESC. If you are wandering to build a drone and don’t know what will be the best ESC for you then worry no more, we have got your back. At , we have everything for you to get started with your drone project. This particular ESC is recommended with A2212 brushless motor (1000kv, 1400kv, 2200kv). For your Convenience Same ESC without Connectors is also available Connections: 30A ESC wiring (Other products not included in this package): Warning: When we connect BLDC ESC directly to the remote control receiver; never ever switch off the remote control before switching off power to the BLDC ESC. Depending on the model of the remote control; it may result in full throttle applied to the motor and it will rotate at full speed. Features: High-quality MOSFETs for BLDC motor drive. Backward-polarity protection and protection on the 5V receiver line. High-performance microcontroller for best compatibility with all types of motors at greater efficiency. Fully programmable with any standard RC remote control. Heat sink with a high-performance heat transmission membrane for better thermal management. 3 start modes: Normal / Soft / Super-Soft, compatible with fixed-wing aircraft and helicopters. We can configure the throttle range to be compatible with any remote control available in the market. Package Includes: 1 x 30A BLDC ESC Electronic Speed Controller with Connectors.
High power LED 20-100W lamp bead lens 44MM optical glass 90 degree led lens
[LED Lens] The 44mm High Power LED Lens Kit is designed for improving the light output and beam control of 20W to 100W integrated LED light sources. It includes a high-quality optical glass lens, reflective collimator, and metal fixing bracket for stable mounting. In addition, the lens provides a wide 90-degree light distribution, helping create uniform and efficient illumination. As a result, it is suitable for flood lighting, DIY LED lamps, spotlights, and industrial lighting systems. Because of its optical-grade glass construction, the lens delivers excellent light transmission and improved brightness. Furthermore, the included 50mm reflector helps focus and direct the LED beam more efficiently. The durable metal bracket ensures secure mounting and easy installation onto LED modules and heatsinks. Moreover, the compact design makes it suitable for custom lighting projects and high-power LED applications. This LED lens kit is widely used in flood lights, high-power LED lamps, DIY lighting systems, stage lighting, projection lighting, and industrial illumination projects. 🔹 Key Features Suitable for 20W to 100W high power LEDs High-quality optical glass lens Includes reflective collimator and fixing bracket Wide 90° beam angle design Efficient light focusing and distribution Durable metal reflector housing Easy installation and mounting Ideal for DIY and industrial lighting projects 🔹 Technical Specifications Product Type: High Power LED Lens Kit Lens Diameter: 44mm Reflector Diameter: 50mm Beam Angle: 60°–80° Lens Type: Optical Glass Lens Reflector Material: Metal Bracket Material: Metal Applicable LED Power: 20W–100W Light Angle: 90 Degrees Application Type: Integrated High Power LED Source 🔹 Applications This LED lens kit is suitable for many lighting applications, including: High power LED flood lights DIY LED lamps Spot lighting systems Stage lighting Industrial lighting Projection lighting projects Outdoor LED lighting systems 🔹 Package Includes 1 × 44mm Optical Glass Lens 1 × 50mm Reflector 1 × Metal Fixing Bracket
Small Aluminium Heat Sink for TO-220 Package Black
[Aluminium Heat Sink] Heat Sink-TO220 Package- Black Anodized Heatsink to dissipate heat from any TO-220 package like 7805 voltage Regulators, Mosfets, transistors, etc. Generally used to keep voltage regulators and motor drivers cool, and efficient, and increases the reliability of the components. Feature/Specs: Package: TO220 PI49 Material: Aluminum Color: BLACK Processing method: Extruded Uses in Regulator, Mosfet, IGBT, High Power Transistor, IC, VGA, LED, RAM, Prevents overheating of the board, etc. Absorbs heat quickly Fast cooling High-temperature dissipation Quantity of blade: 4 Size: 22mm Blade thickness: 1mm Dimensions: 22 x 16 x12.5mm Approx Weight: 17gm Package Includes: 1x Heat Sink-TO220 Package-PI49 Note: Product Images are shown for illustrative purposes only and may differ from the actual product.
![3.7v – 4V Flower Shape COB led light [ Color – Cool White ] — Power & Components](/products/3-7v-4v-flower-shape-cob-led-light-color-cool-white/front.webp)
Out of stock3.7v – 4V Flower Shape COB led light [ Color – Cool White ]
[COB LED] This Chip on Board COB Led Light is a very small and innovative product, it comes in many different Shapes and Sizes. Its mostly used where the thickness of the product is a very important consideration. This led comes with an Aluminium metal back which acts as a heat-dissipating area for the Led, as these led got hot while running, but for the safety purpose we will recommend you to attach a metallic heat sink with it or paste it on the metal surface. Plate Dimensions ( L x B x H ):- ~74mm X ~22mm X ~2mm. Name of character/shape/letters on COB plate: SHAPE Fan Blade Dimensions of Led Area ( L x B x H ) :- ~62mm X ~18mm X ~1mm. Thickness:- 2mm. Input Voltage:- 3.7v – 4V. Max Input Voltage:- 4v (More than 4v Voltage will completely damage the product ) Aluminum back as a heat sink. Package Includes: 1 x 3.7v – 4V Flower Shape COB led light [ Color – Cool White ]
7 IN 1 MULTICOLOR DOB COLOR CHANGING 220V
[COB LED] The 7-in-1 Multicolor DOB Color Changing 220V LED Light is a premium AC-powered LED module designed for decorative lighting, room ambience, DIY lamp projects, and home lighting upgrades. This high-brightness Direct-On-Board (DOB) LED can produce 7 different vibrant colors with smooth transitions, offering stunning visual effects without the need for any external driver. Simply connect it directly to 220V AC, making it ideal for homes, shops, studios, showcases, festivals, and creative lighting installations. The color-changing mode cycles through multiple colors including Red, Green, Blue, Pink, Yellow, Cyan, and White, giving you a complete multicolor experience. With long life, low heat, and high efficiency, this DOB LED module is perfect for replacing old bulbs or creating your own custom lighting solutions. ⭐ Key Features 7-in-1 Multicolor DOB LED Module Produces 7 vibrant colors with automatic color-changing mode 220V AC Direct Input – No external driver required High brightness & wide beam for strong illumination Perfect for DIY lamp projects, decorative lights, and ambience lighting Low power consumption with high efficiency Stable performance with long operating life Compact and easy to install on metal heatsinks or lamp housings 🔧 Typical Specifications Input Voltage: 220V AC Type: DOB (Direct On Board) LED Colors: Red, Green, Blue, Yellow, Cyan, Pink, White Mode: Automatic color changing Power: (Specify wattage if you want — e.g., 3W/5W/7W/9W) Use With: Heat sink / aluminum base for long life 🎯 Applications Decorative room lighting RGB ambience lamps DIY lighting projects Showcase lighting Event & festival decorations Night lamps & wall lighting Creative custom lights Package Includes: 1X 7 IN 1 MULTICOLOR DOB COLOR CHANGING 220V
Out of stockAluminum Heat Sink for TO-220 Mosfet Transistor
[Aluminium Heat Sink] A heat sink is a passive heat exchanger that transfers the heat generated by an electronic or a mechanical device. It allows the regulation of the device's temperature at an optimal level. In computers, heat sinks are use to cool central processing units or graphics processors. If heat dissipation ability of the component itself is insufficient to maintain it's temperature; then Heat sinks are use with high-power semiconductor devices. An Aluminum heatsink is the most widely used product for thermal solutions. Features: Excellent corrosion resistance Low weight Non-magnetic Easy to recycle Great addition to your hobby craft tool kit. Perfect Product for your safety and Lab supply. Good for many applications include industrial, laboratory, personal, and hobbies. Package includes This is the pack of 1 piece of 2cm x 1.5cm Aluminium heatsink for TO-220 Mosfet transistor