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/11ZR4nwvzLMV9ut5gdX_YyeyNofVVmO3f/view?usp=sharing

Features:

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

◆ 6 themed lighting effects. 16 million colors, six themed lighting effects, a total of 18 cool lighting effects.

◆ Fine CNC cutting panel, 87 keys keyboard arrangement, small and exquisite.

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

◆ 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.

◆ Full keyboard pluggable switch, plug and change, DIY switch.

◆ Fn multimedia composite function. Including key combinations, multimedia, lighting control and other functions.

◆ 5000W gaming level mechanical switch. 50 million lifespan, four colors available.

Specifications:

Brand: GamaKay

Name: Mechanical Gaming Keyboard

Model: K87

Key: 87 Keys

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