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Short black Micro USB to USB A cable with inline on/off switch, 28 cm long

HETAI Digital Technology Co.,Ltd

HETAI Digital Technology Co.,Ltd 28cm USB Cable with ON/OFF Switch Micro USB to USB A

SKU CH-E4XP-QZ47R

A 28 cm Micro USB to USB A power cable with an inline on/off switch for USB lamps, fans and similar devices — data lines are not connected

  • Connector TypeMicro USB to USB A
  • One-touch power control for USB lamps and fans
  • 28 cm length keeps desk setups tidy
  • Micro USB to USB A connectors fit common peripherals
  • Supports up to 2 Amps for reliable charging
  • Data lines not connected — power-only cable

Power-Switch Cable for USB Devices

This 28cm USB cable adds an on/off toggle between a USB-A male plug and a USB-A female socket. It lets you control power to USB lamps, fans or similar low-current accessories without unplugging them. The switch interrupts only the power lines; data lines are not connected through the cable. It is intended for simple DC power switching in hobbyist or peripheral setups.

Sustained Current Handling

The copper conductors are rated for a maximum continuous current of 2 Amps. Under steady load the cable delivers power to attached devices while the switch remains closed. Because the data lines are absent, there is no signalling overhead or enumeration delay when the switch is toggled. The short 28cm length keeps voltage drop minimal for the rated current.

USB Power-Only Limitation

The cable carries only VBUS and ground; D+ and D- are not wired, so it cannot transfer data or negotiate higher USB power profiles. Devices that require data handshake for charging or firmware updates will not function through this cable. It suits basic LED lighting, small fans or microcontroller boards powered from a fixed 5 V source. Buyers needing data connectivity or fast-charging negotiation should choose a fully wired USB cable.

Highlights

  • One-touch power control for USB lamps and fans
  • 28 cm length keeps desk setups tidy
  • Micro USB to USB A connectors fit common peripherals
  • Supports up to 2 Amps for reliable charging
  • Data lines not connected — power-only cable

Specifications

Connector TypeMicro USB to USB A

Questions about this item

Does the 28 cm cable with its ON/OFF switch draw any power or generate heat when left on all day?

The cable itself is a passive copper conductor rated for up to 2 Amps, so it adds no active power draw or heat beyond the connected device's normal consumption.

What must I already have to use this Micro USB to USB A switched cable?

You need a USB-A power source such as a charger, power bank or computer port, plus a Micro-USB device like a lamp, fan, Raspberry Pi or Arduino board.

Will this switched cable work with an older USB 2.0 hub or charger I already own?

Yes, the USB-A male plug and Micro-USB female socket are backward-compatible with legacy USB 2.0 ports, though the data lines are not connected so it only supplies power.

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