Software for Mac (fixed the light problem):

https://drive.google.com/file/d/1BPqf63DSI46_NoFxA3rAJVM-412i55Ti/view?usp=sharing

Installation guide tutorial for Mac (please follow the video/document completely):
video: https://drive.google.com/file/d/1l0QdzVBEYzPlC9adbsqvzdWx2ENOAiSt/view?usp=sharing
document: https://docs.google.com/document/d/1BttUgBLpbsiRkDb3-xg0lG9hidGWpDZU1IAQcOVsKU4/edit?usp=sharing

Software for K87 (driver): 

https://drive.google.com/file/d/1VYwHteiSDEm0mkrWMlm7cs1pJeNIXadw/view?usp=sharing

Features:

◆ 87 keys mechanical keyboard, PMMA plexiglass material 360º full translucent glazed panel, fantasy light effect.

â—† 6 themed lighting effects. 16 million colors, six themed lighting effects, a total of 18 cool lighting effects.

â—† Fine CNC cutting panel, 87 keys keyboard arrangement, small and exquisite.

â—† Increase program storage space, light effect memory function. Can remember the last light effect setting, needn't reset after unplugging.

â—† 87 keys full key without conflict. Press multiple buttons at the same time to trigger commands instantly without conflict or interference, greatly enjoy playing games.

â—† Full keyboard pluggable switch, plug and change, DIY switch.

â—† Fn multimedia composite function. Including key combinations, multimedia, lighting control and other functions.

â—† 5000W gaming level mechanical switch. 50 million lifespan, four colors available.

Specifications:

Brand: GAMAKAY

Name: Mechanical Gaming Keyboard

Model: K87

Key: 87 Keys

Switch: Red Switch，Brown Switch，Yellow Switch

Backlight: RGB Backlight

Interface: Type-C 3.1

Weight: 810g

Package includes:

1 * GAMAKAY K87 Mechanical Keyboard

1 * Type-C Cable

1 * User Manual

Reviews:

https://elchapuzasinformatico.com/2020/11/womier-k87-review/

https://blog.naver.com/jjikka2/222217141658