USB to 6V DC Power Cable – 4.0x1.7mm Barrel Plug, 100cm
USB to 6V DC Power Cable – 4.0x1.7mm Barrel Plug, 100cm
Power Your Device Without Batteries
Say goodbye to constantly replacing AA batteries. This USB to 6V DC power cable lets you run your 6V electronic device directly from any USB adapter — including wall chargers and USB car adapters — using a standard 4.0x1.7mm DC plug. At approximately 100cm long, it gives you flexible reach for convenient desktop use.
Key Features
- USB to DC Conversion: Steps up USB 5V input to a stable 6V DC output, perfect for 6V devices with a 4.0x1.7mm barrel connector
- Wide Compatibility: Works with a broad range of 6V devices using the 4.0x1.7mm plug (output current under 1000mA), including many popular electronic monitors such as HEM-741, HEM-7121, HEM-7130, HEM-712, HEM-7122, HEM-752, HEM-745C, HEM-7300, HEM-8102A, HEM-942C, HEM-780N3, I-C10, M4-I, M5-I, M6W, and more
- Flexible Power Sources: Compatible with wall USB adapters, USB car chargers, and most standard USB power supplies
- Reliable Output: Delivers up to 1A output current for stable, consistent device operation
- Practical Length: Approx. 100cm cable length for comfortable desktop and travel use
- Polarity: Inside positive, outside negative — standard DC barrel polarity
Specifications
| Input | DC 5V, USB Type-A Male |
| Input Current | 2A |
| Output | DC 6V, 4.0x1.7mm Barrel Plug |
| Output Current | Up to 1A |
| Cable Length | Approx. 100cm |
| Color | Black / White |
| Polarity | Center Positive |
What's in the Box
- 1 × USB 5V to DC 6V Adapter Cable (4.0x1.7mm plug)
Important Notes
- For devices with a 4.0x1.7mm plug drawing less than 1000mA only. Do not use with higher-draw devices.
- Some USB power banks with automatic power-off functions (triggered at low draws, e.g. ~90mA) may cut power unexpectedly. A wall USB adapter is recommended for uninterrupted operation.
- Please allow 0–1cm measurement tolerance.
- Made in Mainland China.
You May Also Like
- 1/2" Drive 8-Piece Hex Short Socket Set – Vanadium Steel
- 10-Pc Hex Nut & Bolt Extractor Kit 9–19mm | HIP Tools
- 105° Right Angle Driver with 1/4" Hex Screwdriver Bit | HIP
Learn more: OSHA on eye and face protection
Frequently Asked Questions
Q: What devices is this USB to 6V DC power cable compatible with?
A: This cable is designed for any 6V device that uses a 4.0x1.7mm center-positive DC barrel plug and draws less than 1000mA. It is compatible with many popular electronic blood pressure monitors including HEM-741, HEM-7121, HEM-7130, HEM-712, HEM-7122, HEM-752, HEM-745C, HEM-7300, HEM-8102A, HEM-942C, HEM-780N3, and models M4-I, M5-I, M6W, I-C10, among others. Always verify your device's voltage, current, and plug size before use.
Q: Can I use this cable with a USB power bank?
A: While the cable is compatible with USB power banks, many power banks feature an automatic shut-off triggered by very low current draw (around 90mA). This may cause intermittent or lost power. For uninterrupted performance, we strongly recommend using a standard wall USB adapter instead of a power bank.
Q: What is the cable's output voltage and polarity?
A: The cable outputs DC 6V at up to 1A, with center-positive polarity (inside positive, outside negative). It accepts a standard USB Type-A 5V input and steps it up to 6V for compatible devices.
Q: How long is the cable?
A: The cable measures approximately 100cm (about 39 inches), providing convenient reach for desktop or bedside use. Please allow 0–1cm variance due to manual measurement.
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.