All products · 7 of 1440
Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
Apple MacBook Air M2 (8 GB / 256 GB)
Apple M2 silicon, 13.6" Liquid Retina, 8 GB unified memory, 256 GB SSD. Fanless, all-day battery.
Only 2 leftApple MacBook Pro 14" M3 (16 GB / 512 GB)
14" Liquid Retina XDR (mini-LED, 120 Hz). M3 SoC, 16 GB unified memory, 512 GB SSD. Workstation-class for content creators.
Only 2 leftApple iPad Pro 11" (M4, Wi-Fi, 256 GB)
Tandem OLED display, M4 chip, 256 GB. Pencil Pro and Magic Keyboard sold separately.
QC3.0 PD 2.0 Power Bank Dual Type-C Port Two-way Fast Charging Mobile Power Bank Module
[Lithium Battery Protection Board] 📝 Description Upgrade your portable power solutions with this advanced QC3.0 PD 2.0/3.0 Fast Charging Power Bank Module, engineered for high-performance mobile power systems and professional DIY applications. The motherboard features 5 default USB interfaces — Type-C, Lightning, Micro-USB, Type-A1, and Type-A2, along with a dedicated DC input port (charge-only, no discharge) supporting 5V–12V input. This multi-interface design ensures maximum compatibility with smartphones, tablets, laptops, and other USB-powered devices. 🔌 Port & Charging Capabilities Type-C Port supports bi-directional fast charging, allowing both input and output operation. Input protocols: AFC / FCP / SCP / VOOC / PD2.0 / PD3.0 Output protocols: PPS / PD2.0 / PD3.0 / AFC / FCP / QC2.0 / QC3.0 / QC3+ / SCP Lightning Port supports PD2.0 fast-charging input Micro-USB Port supports AFC / FCP / SCP fast-charging input Type-A1 & Type-A2 Ports support Apple / AFC / FCP / VOOC / QC2.0 / QC3.0 / QC3+ / SCP fast-charging output DC Port supports 5–12V input only (charging function, no output) ⚡ Fast-Charging Performance Input Voltage Support: 5V / 9V / 12V / 15V / 20V PPS Output: 3.3V–21V / 3A PD2.0 / PD3.0 Output: 5V ⎓ 3A 9V ⎓ 3A 12V ⎓ 3A 15V ⎓ 3A 20V ⎓ 5A QC2.0 Output: 5V ⎓ 3A / 9V ⎓ 3A / 12V ⎓ 3A QC3.0 Output: 5V–12V (200mV step adjustment) AFC Output: 5V ⎓ 3A / 9V ⎓ 2A / 12V ⎓ 2A FCP Output: 5V ⎓ 3A / 9V ⎓ 2A / 12V ⎓ 1.5A SCP Output: 5V ⎓ 4.5A / 10V ⎓ 2.2A VOOC Output: 5V ⎓ 4A 🔋 Battery & Power Options Powered by 18650 or Li-polymer battery packs, the module is available in three high-power variants: 3S – 65W (GXJA0707-001) 4S – 100W (GXJA0707-002) 5S – 100W (GXJA0707-003) The built-in digital display provides real-time monitoring of voltage, current, and power status, enabling precise control and safe operation. Compact, efficient, and feature-rich, this power bank module is ideal for DIY high-capacity power banks, portable charging stations, laptop backup batteries, and custom lithium battery systems up to 25,000mAh. ⭐ Key Features ✔ Multi-Port Design: Type-C, Lightning, Micro-USB, 2× USB-A, DC input✔ Bi-Directional Type-C Fast Charging (Input & Output)✔ Supports PPS, PD2.0/3.0, QC2.0/3.0, QC3+, AFC, FCP, VOOC, SCP✔ High Power Output: 65W (3S) / 100W (4S & 5S)✔ Digital Display for Real-Time Monitoring✔ Compatible with 18650 & Li-polymer Battery Packs✔ Compact & Portable PCB Design✔ Ideal for DIY Power Banks & Professional Builds 📦 Package Includes 1 × QC3.0 PD 2.0/3.0 Power Bank Fast Charging Module(Select Variant: 3S 65W / 4S 100W / 5S 100W) 1 × Integrated Digital Display (On-Board)
12V 24V to QC3.0 Fast Charge Dual USB Charging Board Step-Down Module
[Step Down Buck Converter] Dual USB Output • Fast Charging • High Efficiency • Wide Input Voltage The Dual USB QC3.0/QC2.0 DC-DC Buck Converter Module is a compact and high-efficiency DC step-down power supply designed to convert 6V–32V DC input into dual USB fast-charging outputs. Equipped with two USB ports, it allows simultaneous charging of two devices while supporting multiple fast-charging protocols for maximum compatibility. Using advanced synchronous buck conversion technology, the module delivers up to 24W output power with a conversion efficiency of 90%–97%. It automatically detects compatible devices and adjusts the output voltage between 3V and 12V to provide fast, safe, and efficient charging. The module supports a wide range of charging standards including Qualcomm Quick Charge 2.0 & 3.0, Huawei FCP/SCP, Samsung AFC, Apple Charging Protocol, BC1.2, DCP, and Spreadtrum SFCP, making it suitable for charging smartphones, tablets, GPS devices, Bluetooth speakers, and other USB-powered electronics. Its wide input voltage range makes it ideal for automotive power systems, solar charging applications, battery-powered devices, industrial equipment, and DIY electronic projects. ⭐ Features Dual USB charging ports Supports Qualcomm Quick Charge 2.0 & 3.0 Wide input voltage: 6V–32V DC Automatic output voltage adjustment (3V–12V) Maximum output power up to 24W High conversion efficiency (90%–97%) Supports multiple fast-charging protocols Built-in output voltage compensation Stable and reliable performance Compact PCB design for easy installation 📋 Technical Specifications Product Type: DC-DC Buck Converter Fast Charging Module USB Output Ports: 2 Input Voltage: 6V–32V DC Default Output Voltage: 5V Fast Charging Output Voltage: 3V–12V (Automatic Negotiation) Maximum Output Power: Up to 24W Typical Output Modes: 5V / 3.4A 9V / 2.5A 12V / 2A Conversion Efficiency: 90%–97% Charging Protocols Supported: Qualcomm QC2.0 Qualcomm QC3.0 Huawei FCP Huawei SCP Samsung AFC Apple Charging Protocol BC1.2 DCP SFCP Output Voltage Compensation: Supported Cooling Method: Natural Air Cooling Mounting Type: PCB Mount Material: Metal + Plastic 🔧 Applications Suitable for: Car USB charger conversion Solar charging systems Battery-powered projects DIY power supplies Smart home electronics Mobile phone charging Tablet charging GPS devices Bluetooth speakers Industrial control equipment Portable charging stations Embedded electronic projects 📦 Package Includes 1 × Dual USB QC3.0/QC2.0 DC-DC Buck Converter Fast Charging Module
QC3.0 QC2.0 USB DC-DC Buck Converter Fast Charging Module | 6–32V Step-Down to 3V / 5V / 9V / 12V | 4-Channel Quick Charger Circuit Board
[Step Down Buck Converter] 📝Description This QC3.0 QC2.0 USB DC-DC Buck Converter Charging Module is designed to convert a wide DC input range of 6V to 32V into stable fast-charging USB outputs. It supports Quick Charge 2.0 and 3.0 protocols, enabling intelligent voltage negotiation for rapid and efficient charging. The module features four independent output channels, making it suitable for charging multiple devices simultaneously. With support for common automotive and industrial voltages such as 9V, 12V, and 24V, it is perfect for use in cars, bikes, solar systems, battery packs, power banks, and embedded electronics projects. Thanks to its high-efficiency DC-DC step-down design, the module minimizes heat generation while maintaining reliable power delivery. This makes it an excellent choice for DIY enthusiasts, repair technicians, and developers looking to integrate fast USB charging into their systems. ⭐ Key Features ✔ Supports QC3.0 & QC2.0 Fast Charging Protocols ✔ Wide Input Range: 6V–32V DC (9V / 12V / 24V systems) ✔ Multi-Voltage Output: 3V / 5V / 9V / 12V ✔ Four-Channel USB Output for simultaneous charging ✔ High-Efficiency Buck Converter with low heat generation ✔ Automatic Voltage Negotiation for connected devices ✔ Ideal for automotive, solar, battery, and DIY electronics projects 🔧 Technical Specifications Input Voltage: 6V – 32V DCSupported Input Systems: 9V / 12V / 24VCharging Channels: 4 USB outputsFast-Charging Standards: QC2.0, QC3.0Supported Protocols: DCP BC1.2 Apple Charging Protocol Samsung Charging Protocol Huawei Fast Charge: FCP / SCP Huawei AFC Spreadtrum Fast Charge Protocol (SFCP) Qualcomm QC2.0 / QC3.0 Conversion Type: DC-DC Buck (Step-Down)Application Areas: Automotive USB charger, solar charging system, battery-powered devices, DIY electronics 📦 Package Includes 1 x 4 CHANNEL USB QC3.0 QC2.0 DC-DC Buck Converter Charging Step Down Module 6-32V 9V 12V 24V to Fast Quick Charger Circuit Board
USB QC3.0 QC2.0 DC to DC Buck Converter Charging Module Fast Quick Charger
[Step Down Buck Converter] This module accepts a 6-24V Input and supports USB QC3 Charging on the output. It takes care of regulating the signals on the USB Data transer lines and offers fast charging when a compatible device is connected. Great for adding USB charging in your next project. Supports: QC2.0, QC3.0, MTK PE1.1/2.0, FOR Apple, FOR Samsung AFC,FOR Huawei FCP, FOR Spreadtrum SFCP Input voltage: DC 6~30V Output voltage: default 5V, adjust range 3~12V according to fast charging protocol Output capacity: single-port rated current 2.4A, Rated power 24W Protection measures: Output overvoltage protection, limit the output voltage does not exceed 13V (in the case of chip failure); input with a fuse. This mini DC-DC step-down voltage converter module supports 6-24V voltage input and 5V 3A output with input polarity reverse protection and output overvoltage protection, short circuit protection. It adopts synchronous rectification technology to ensure ultra-high power conversion up to 97.5% to take full use of your input power. On-board female type A USB port with identification circuit perfectly fit for smartphones as well as it can be useful to power or recharge any electronic gadget which required 5V input power up to 3A Features: Non-isolated buck module (BUCK) synchronous rectification Maximum Output Current: 3A MAX Conversion efficiency: can up to 97.5% (6.5V step down to 5V 0.7A) (after short reverse protection and fuses test value) Switch frequency: 500KHz Output Ripple: 10mV around (12V to 5V3A) 20M bandwidth Output indicator: The output voltage indicator is red Operating temperature: Industrial grade (-40 to + 85 ) (the higher the ambient temperature, the lower the output power) Output overvoltage protection: Yes, input 1.5A fuse, output 5V have 300W TVS tube clamp protection. Flat copper inductor, improve conversion efficiency With output overvoltage protection. There is a 1.5A fuse, output 5V have 300W TVS tube protect your USB device High-quality USB port Output voltage indicator (RED) Small size, Compact Size Input with reverse polarity protection diode, will not damage when input connect incorrectly Ultra-low static current, 0.85 mA only. Do not need to add switch when connected to the car battery, can be connected to car cigarette lighter cable or ACC power supply cable Ultra-small size, 26.4 (L) * 15 (W) * 7.4 (H) mm Input voltage range: 6V-32V Output voltage: default 5V, automatically adjust between 3-12V after triggering fast charge Output power: up to 24W (5V/3.4A, 9V/2.5A, 12V/2A, etc.) Output voltage cable compensation function Conversion efficiency: 90%-97% Support multiple fast charging protocols Input overvoltage and undervoltage protection Input overcurrent protection Output overcurrent, short circuit protection Machine over temperature protection Support fast charge agreement Support DCP protocol, BC1.2, Apple, Samsung protocol Support Huawei Fast Charge Protocol FCP/SCP Support Huawei Fast Charge Protocol AFC Support Spreadtrum Fast Charge Protocol SFCP · Support Qualcomm QC2.0 and 3.0 Support MTK PE1.1/PE2.0 Precautions: please enhance heat dissipation when fully used for load output(i.e. 5V@3A with 24V Input). For the ideal case (i.e. 5V@2A output with 12V Input) it does not need to enhance heat dissipation. Applications: Solar panel to mobile phone charging Car charging retrofit Driving recorder power supply Home power supply, smart plug modification Fast charge adapter Package Includes: 1 x USB Step Down DC-DC Converter Module