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Small white USB dongle about two centimetres long

Belkin 121 USB mouse jiggler white

SKU CH-APFZ-X1NJN

Tiny USB dongle keeps a PC awake by moving the cursor one pixel every 20 seconds with no software required

  • ColorWhite
  • Specifications2 L x 1.5 W x 0.5 H centimeters, 0.1 grams, 121, usb, USB, f
  • Recognised as a standard mouse device so sleep is prevented without interfering with your real mouse
  • Works instantly with no driver or software required — just plug it in and it runs
  • Tiny receiver-sized form factor at 2 L x 1.5 W x 0.5 H centimetres fits any USB port
  • Cursor shifts a single pixel every 20 seconds, keeping sessions alive while movement stays barely noticeable
  • Compatible with Windows 7 through 11, Mac and Unix systems for broad device support

Belkin 121 USB mouse jiggler

The Belkin 121 is a tiny USB device that keeps a computer awake by simulating imperceptible cursor movement. It is intended for anyone who needs their session to stay active during long reads, remote connections or video calls without installing extra software.

Undetectable HID operation

The unit registers as a standard mouse so it works on Windows 7 through 11, Mac and Unix systems without drivers. It moves the pointer one pixel every 20 seconds, alternating direction, providing just enough activity to stop sleep mode while remaining barely visible.

Mini receiver form factor

Measuring 2 by 1.5 by 0.5 centimetres and weighing 0.1 grams, it sits flush in a USB-A port like a wireless dongle. The plug-and-play design means it draws power directly from the port and requires no batteries or configuration.

Highlights

  • Recognised as a standard mouse device so sleep is prevented without interfering with your real mouse
  • Works instantly with no driver or software required — just plug it in and it runs
  • Tiny receiver-sized form factor at 2 L x 1.5 W x 0.5 H centimetres fits any USB port
  • Cursor shifts a single pixel every 20 seconds, keeping sessions alive while movement stays barely noticeable
  • Compatible with Windows 7 through 11, Mac and Unix systems for broad device support

Specifications

BrandBELKIN
Model121
Part Number121
ColorWhite
Specifications2 L x 1.5 W x 0.5 H centimeters, 0.1 grams, 121, usb, USB, false

Questions about this item

Will the 121 USB mouse jiggler work with my older Windows 7 laptop?

Yes, the device is compatible with Windows 7, 8, 10 and 11 as well as Mac and Unix systems.

How can I confirm the 121 mouse jiggler is active after plugging it in?

The cursor will shift one pixel every 20 seconds, starting left then moving right, a movement barely visible to the eye.

Does the 121 mouse jiggler package include any cables or software discs?

The box contains only the tiny USB dongle measuring 2 by 1.5 by 0.5 centimetres; no cables, batteries or software are required or supplied.

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