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Electronics, sensors, robotics kits, PC components, peripherals — everything Unik Systems carries, in one place.
USB Type-A Male Connector Plug (Solder Type) – DIY USB 2.0 Charging & Data Cable Connector
[USB Socket] 📖 Product Description Build your own USB cables easily with this USB Type-A male connector plug.It’s perfect for DIY cable making, USB repairs, and electronic projects.This connector features a strong nickel-plated metal shell, 4 solder pins, and a standard USB 2.0 interface for reliable performance in both power and data transmission. Use it to repair broken cables, create custom USB extensions, or prototype devices that connect to any USB-compatible port (like power banks, chargers, Arduino boards, and embedded systems). Please check our others items: Click Here ⚙️ Key Features ✅ Standard USB Type-A male plug – fits all USB 2.0 Type-A ports ✅ DIY solder type design – easy to connect wires securely ✅ Durable metal housing – ensures longevity and protection ✅ Stable power & data transfer – ideal for charging and communication ✅ Perfect for makers, technicians, and electronic enthusiasts 📐 Technical Specifications Specification Details Connector Type USB Type-A Male Interface Standard USB 2.0 Pin Count 4 Pins Mount Type Cable / Solder Type Shell Material Nickel-Plated Metal Insulator Material High-Temperature Plastic Color Silver with White Insulator Rated Voltage 5V DC Rated Current Up to 2A Operating Temperature −20 °C to +70 °C Dimensions Approx. 20 mm × 18 mm × 4.5 mm Weight Approx. 2 g 💡 Applications DIY USB charging cables Custom USB extension cables USB data and power projects Embedded systems, Arduino, Raspberry Pi Replacement connector for broken USB plugs 📦 Package Includes 1 × USB Type-A Male Connector Plug (Solder Type)
Banana Plugs Terminal Connectors Male Red and Black Pair 4mm Good Quality
[Power Connector] 4mm Banana Plug Terminal Connectors – Male Red & Black Pair The 4mm Banana Plug Terminal Connectors are reliable and convenient connectors designed for audio equipment, industrial instruments, power testing, automotive testing, laboratory equipment, and DIY electronics projects. With a standard 4mm banana plug diameter, these connectors are compatible with most standard 4mm banana sockets and test equipment. The screw-type connector fitting allows wires to be securely connected without soldering, making installation quick, simple, and reusable. The stackable design also allows the plugs to be connected with existing 4mm banana plugs, providing greater flexibility for testing and power connections. The Red and Black color combination makes it easy to identify positive and negative connections, making these plugs suitable for power supplies, test leads, speakers, electronic instruments, and other electrical applications. ⭐ Key Features Standard 4mm banana plug diameter Red and Black male banana plug pair Screw-type wire connection No soldering required Easy installation and removal Secure and reliable electrical connection Stackable design Compatible with standard 4mm banana sockets Easy positive/negative identification Suitable for audio, testing, laboratory, and electronic applications 📋 Technical Specifications Product Type: Banana Plug Terminal Connector Connector Type: Male Banana Plug Diameter: 4mm Color: Red & Black Connection Method: Screw Terminal Soldering: Not Required Design: Stackable Current Rating: 10A Typical Voltage Rating: Typically up to 30–60V DC, depending on application Contact Type: Spring Contact Application: Audio, Power Testing & Electronics 🔧 Applications Audio Equipment Speaker Connections Power Supply Connections Laboratory Power Supplies Multimeter Test Leads Electronic Test Equipment Industrial Instruments Power Testing Automotive Testing DIY Electronics Projects Electrical Prototyping Battery Testing ⚠️ Precautions Do not exceed the connector's actual current and voltage limits. Ensure the wire is securely tightened inside the screw terminal. Always observe correct polarity when connecting DC power. Use appropriately rated wires for the desired current. Avoid short-circuiting the connector. 10A is a typical rating and should not be treated as a guaranteed manufacturer specification unless confirmed for the specific batch/model. 📦 Package Includes 1 × Red 4mm Male Banana Plug 1 × Black 4mm Male Banana Plug
DC Power Connectors Female Jack Panel Mount Bulkhead 5.5*2.1mm 2pin
[Power Connector] 🔌 DC 5.5 × 2.1mm Female Power Jack Socket Panel Mount Connector Panel Mount • 5A Current Rating • Silver-Plated Contacts • Durable & Reliable The DC 5.5 × 2.1mm Female Power Jack Socket is a high-quality panel mount DC power connector designed for reliable DC power connections in electronic equipment and DIY projects. It features a standard 5.5mm outer diameter and 2.1mm inner diameter, making it compatible with most DC power adapters and barrel plugs. The connector utilizes silver-plated copper alloy contacts to provide excellent electrical conductivity, low contact resistance, and outstanding corrosion resistance. The durable ABS plastic housing offers high mechanical strength and long-lasting performance, while the panel mount design ensures secure installation in enclosures, control panels, and electronic equipment. Designed for frequent use, the connector supports approximately 10,000 insertion and removal cycles, making it suitable for both commercial and industrial applications. ⭐ Features Standard 5.5 × 2.1mm DC female power jack Panel mount design for secure installation High-quality silver-plated copper alloy contacts Excellent electrical conductivity Low contact resistance High corrosion resistance Durable ABS plastic housing Long mechanical life (up to 10,000 insertion cycles) Easy solder or PCB connection Suitable for DC power applications up to 48V 📋 Technical Specifications Product Type: DC Power Jack Socket Connector Type: Female Barrel Size: 5.5mm × 2.1mm Mounting Type: Panel Mount / PCB Mount Installation Angle: Straight / Right Angle (Depending on Variant) Termination Type: Through Hole / Solder Contact Material: Silver-Plated Copper Alloy Housing Material: ABS Plastic Rated Voltage: 48V AC/DC Rated Current: 5A Insulation Resistance: Minimum 1000MΩ Dielectric Withstand Voltage: 500VAC Mechanical Life: Approx. 10,000 Mating Cycles Color: Black 🔧 Applications Suitable for: DC Power Supplies CCTV Cameras LED Lighting Systems Audio Equipment Video Equipment Communication Devices Arduino Projects Raspberry Pi Projects Robotics DIY Electronics Security Systems Computer Accessories Consumer Electronics Test Equipment Industrial Control Panels 📦 Package Includes 1 × DC 5.5 × 2.1mm Female Power Jack Socket Panel Mount Connector ⚠️ Note Compatible with standard 5.5 × 2.1mm DC barrel plugs. Product images are for reference only. The actual product may vary slightly depending on the manufacturing batch.
2.1×5.5mm DC Power Jack Socket Panel Mount (Female) 3Pin
[Power Connector] The 2.1 x 5.5mm DC Power Jack Socket Panel Mount Female Connector is a reliable and durable DC power socket designed for panel mounting in electronic equipment and enclosures. It accepts standard 2.1mm or 2.5mm center pin × 5.5mm outer diameter DC barrel plugs, making it compatible with a wide range of DC power adapters and supplies. Constructed with a high-quality insulating body and nickel-plated metal contacts, the socket provides excellent electrical conductivity, low contact resistance, and long service life. The supplied metal mounting nut ensures secure installation on control panels, project boxes, and equipment enclosures. The connector is suitable for DC power applications from 12V to 30V and is widely used in CCTV cameras, LED lighting systems, routers, battery chargers, DIY electronics, automation equipment, telecommunications, musical instruments, and embedded electronic projects. Its compact design, strong mechanical construction, and reliable electrical performance make it an excellent choice for professional and hobby electronics applications. 🔹 Key Features Standard 2.1 × 5.5mm DC barrel jack Female panel-mount connector Compatible with 2.1mm and 2.5mm center pin plugs Durable metal mounting nut included Nickel-plated contacts for low resistance Secure and reliable electrical connection Compact and lightweight design Easy panel installation Long service life Suitable for low-voltage DC applications 🔹 Technical Specifications Product Type: DC Power Jack Socket Connector Type: Female Connector Size: 2.1 × 5.5mm Compatible Plug Size: 2.1mm / 2.5mm × 5.5mm Mounting Type: Panel Mount Locking Method: Metal Threaded Nut Terminal Type: Solder Terminals Contact Material: Nickel-Plated Copper Alloy Housing Material: High-Quality Plastic Rated Voltage: Up to 30V DC Rated Current: Up to 5A Contact Resistance: Low Color: Black 🔹 Applications Suitable for: CCTV camera power input LED strip lighting DC power adapters Arduino projects Raspberry Pi projects Battery chargers DIY electronics Audio equipment Industrial control panels Communication equipment Test and measurement devices 🔹 Package Includes 1 × 2.1 × 5.5mm DC Power Jack Socket Panel Mount (Female) 1 × Metal Mounting Nut