DIYables DC Barrel Jack to Mini USB Adapter (5-Pack), 2.1 x 5.5mm Female to Mini USB Male Power Converter for Supplying Mini-USB Devices from DC Source
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Quick Overview
This DIYables adapter lets a Mini USB device be powered from an ordinary DC supply. One end is a 2.1 x 5.5mm female barrel socket that accepts a standard DC adapter plug, and the other is a Mini USB male plug that goes straight into the device. The body is a single rigid moulding with no cable, so the whole adapter is short and sits directly on the end of the incoming power lead.
It is a power-only passthrough wired centre positive, which is the convention used by nearly all barrel-jack wall adapters. That makes it a direct way to run Mini USB equipment from a bench supply, a DC wall adapter, or the barrel output of a larger power distribution setup, without cutting and splicing a cable. Because it is passive, the voltage reaching the device is whatever the DC source provides, so a 5V adapter should be used for standard Mini USB hardware.
Ideal for older development boards and Arduino clones with Mini USB power inputs, dash cameras, GPS units, small hubs, and any Mini USB device that needs to run from a DC supply rather than a computer port. This listing includes 5 adapters.
Key Features
- DC Barrel Socket to Mini USB Plug — Accepts a 2.1 x 5.5mm DC adapter plug and outputs to a Mini USB male connector
- Centre Positive Wiring — Matches the polarity convention used by standard barrel-jack power adapters
- Rigid One-Piece Body — No cable to coil or snag; the adapter sits directly on the end of the DC lead
- Power Only Passthrough — Passive design with no electronics, nothing to configure or power up
- Solderless Conversion — Replaces cutting and splicing a Mini USB cable to fit a DC supply
- Reuses Existing Adapters — Puts spare barrel-jack wall adapters and bench supplies back to work
- Compact Footprint — Short body adds minimal length behind the powered device
- Consistent Moulded Housing — Durable plastic shell with a moulded arrow marking for orientation
- Works With DC Distribution — Pairs with barrel-jack splitters and terminal adapters for multi-device power
- 5 Pack — Five adapters for multiple devices, workshop stock, or spares
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | DC Barrel Jack to Mini USB Power Adapter |
| Input Connector | DC barrel jack, 2.1 x 5.5mm female |
| Output Connector | Mini USB male |
| Polarity | Centre positive |
| Function | Power only, passive passthrough |
| Body Style | Rigid one-piece moulding, no cable |
| Housing Colour | Black |
| Package Quantity | 5 pieces |
| Applications | Mini USB development boards, dash cameras, GPS units, small hubs, DC powered devices |
※ NOTE THAT:
This adapter carries power only. It does not pass USB data, so it cannot be used to program a board or transfer files.
It is a passive adapter, not a regulator. The voltage reaching the device is whatever the DC source supplies, so use a 5V source for standard Mini USB hardware. Confirm the DC supply is centre positive before connecting.
COMPATIBLE HARDWARE
- DC wall adapters with a 5.5 x 2.1mm plug — Standard centre positive barrel output
- Bench power supplies with a barrel output — Set to 5V for Mini USB devices
- Development boards with a Mini USB power input — Older Arduino clones and similar boards
- Dash cameras and GPS units — Common Mini USB power connector
- Small USB hubs and peripherals — Powered from a DC source instead of a computer port
- DC power splitter cables — Feed several adapters from one supply
- DC screw terminal adapters — Wire a bare DC supply into the barrel socket
- Any Mini USB device needing power only — Data lines are not connected
