Microsoft SideWinder X4 wired USB gaming keyboard in very good cosmetic and working condition.

This is the original SideWinder X4 model 1421 / KU-0951, Microsoft part number X821562-001. It is a particularly nice example for someone looking to replace a well-used X4 while keeping the familiar full-size layout, dedicated macro controls, red illumination, and anti-ghosting performance that made this model so well liked.

Features six dedicated programmable macro keys with Macro Record and Macro Repeat, automatic profile detection, dedicated media and volume controls, full numeric keypad, integrated wrist rest, adjustable red backlighting, and Microsoft's advanced anti-ghosting design.

Tested and working properly. The keyboard is in excellent overall cosmetic condition with clean, clearly legible keys and controls.

Manufacturer specifications:

• Model 1421 / KU-0951

• Microsoft part number X821562-001

• Wired USB connection

• North American English QWERTY layout

• 18.9" x 7.59" x 0.98"

• Approx. 31.5 oz / 1.94 lb

• Approx. 78.7" / 2 m USB cable

• Six programmable macro keys

• Red backlighting

• Dedicated multimedia and volume controls

• Anti-ghosting

• Integrated wrist rest

• Full numeric keypad

A clean, working example of Microsoft's discontinued SideWinder X4 and a good replacement for anyone who wants to keep using this specific layout and feature set.

Ships quickly, packaged for safe delivery.