USB-A Female to DC Barrel Adapter – 8 Connector Sizes
USB-A Female to DC Barrel Adapter – 8 Connector Sizes
USB-A Female to DC Barrel Charging Adapter – 8 Tip Sizes
Convert any standard USB-A power source into a DC barrel charging connection with this compact and versatile adapter. Whether you're powering a laptop, portable power bank, or other DC-powered device, this adapter bridges the gap between USB-A output and the most common barrel jack sizes — all in one small, lightweight connector.
Made in Mainland China.
Key Features
- 8 Tip Sizes Available: Choose from 2.5×0.7mm, 3.0×1.1mm, 3.5×1.35mm, 4.0×1.7mm, 4.8×1.7mm, 5.5×1.7mm, 5.5×2.1mm, or 5.5×2.5mm to match your device's DC input port.
- USB-A Female Input: Plugs directly into any USB-A power source — wall adapters, power banks, USB hubs, and more.
- Charging Only: Designed exclusively for DC power transfer — does not transmit data.
- Durable PVC + Copper Construction: Solid copper contacts ensure stable power transmission and long-lasting durability.
- Excellent Contact & Resistance: Engineered for secure plug resistance and reliable electrical contact, minimizing power loss.
- Compact & Portable: Approximately 4.2 cm (1.65 inches) in length — easy to carry in a bag, toolkit, or travel kit.
Specifications
| Input Socket | USB-A Female |
| Output Socket | DC Barrel Male (size selectable) |
| Available Tip Sizes | 2.5×0.7mm, 3.0×1.1mm, 3.5×1.35mm, 4.0×1.7mm, 4.8×1.7mm, 5.5×1.7mm, 5.5×2.1mm, 5.5×2.5mm |
| Material | PVC + Copper |
| Length | Approx. 4.2 cm / 1.65 inches |
| Power Source | DC |
| Function | Charging only (no data transfer) |
| Country of Origin | Mainland China |
What's in the Box
- 1× USB-A Female to DC Barrel Adapter (size of your choice)
Compatible Use Cases
This adapter is ideal for laptops, mobile power supplies, portable power packs, small electronics, LED strips, routers, and a wide variety of devices requiring direct-current power input via a barrel jack connector.
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Frequently Asked Questions
Q: What DC barrel connector sizes does this USB-A to DC adapter support?
A: This adapter is available in 8 common DC barrel sizes: 2.5×0.7mm, 3.0×1.1mm, 3.5×1.35mm, 4.0×1.7mm, 4.8×1.7mm, 5.5×1.7mm, 5.5×2.1mm, and 5.5×2.5mm. Simply select the size that matches your device's charging port before ordering.
Q: Can this USB to DC barrel adapter transfer data as well as charge?
A: No — this adapter is designed for DC power (charging) only and does not support data transfer. It converts USB-A power output to a DC barrel connector for charging compatible devices.
Q: What devices is this USB-A to DC connector adapter compatible with?
A: It is compatible with laptops, portable power banks, mobile power supplies, routers, LED drivers, and other small electronics that accept DC barrel jack charging input. Be sure to select the correct barrel size for your specific device.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.