We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green rectangular circuit board with side button switches for G502 RGB mouse

YINGHUA

YINGHUA Mouse Side Button Circuit Board G502 RGB Edition

SKU CH-8D2Z-T2K72

Replacement side-button circuit board restores G502 RGB Edition mouse functionality

  • Replaces worn side-button board on G502 RGB Edition
  • Restores reliable click response for side keys
  • Includes complete motherboard assembly for direct swap
  • Also fits G603 wheel encoder board repairs
  • Single unit supplied ready for installation

Replacement Side Button Board

This circuit board replaces the side button assembly on the G502 RGB Edition mouse. It restores click response when the original switches wear out or fail. The part is intended for owners repairing their existing mouse rather than buying a new unit.

Low Power Passive Component

The board draws negligible power and adds no audible noise to the mouse. It operates passively within the existing USB power budget of the host device. Thermals remain unchanged because the component generates no measurable heat during normal clicking.

G502 RGB Edition Compatibility Only

This board fits the G502 RGB Edition and the G603 wheel encoder board as listed. It will not align with other G502 variants or different mouse models. Buyers needing a main button board, a scroll wheel assembly for another model, or a complete mouse should look elsewhere.

Highlights

  • Replaces worn side-button board on G502 RGB Edition
  • Restores reliable click response for side keys
  • Includes complete motherboard assembly for direct swap
  • Also fits G603 wheel encoder board repairs
  • Single unit supplied ready for installation

Specifications

No published specifications for this item yet.

Questions about this item

How do I install the YINGHUA side button circuit board in my G502 RGB Edition mouse, and what step do people often miss?

Open the mouse shell, disconnect the old board ribbon cable, fit the new board, and reconnect the ribbon; the step often missed is ensuring the ribbon cable seats fully in the ZIF connector before locking the latch.

What maintenance or replacement will this side button circuit board need later?

The board itself is a solid-state part with no scheduled maintenance; if the micro switches develop double-clicks or fail to register, you would replace the individual switches or the whole board again.

What limit shows up first under sustained use of this side button circuit board?

The mechanical micro switches on the board are the first wear point; repeated actuation can degrade contact springs, leading to missed clicks or double-clicking before the PCB traces or solder joints fail.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.