GravaStar Mercury K1 vs NPK Club RO75 Pro
Get the GravaStar Mercury K1 for the 8,000 mAh battery. Get the NPK Club RO75 Pro for hall effect and qmk.
![[In Stock] RO75 pro 75% Pre-Built Aluminum Mechanical Keyboard](https://cdn.shopify.com/s/files/1/0549/0262/0278/files/4_872d9b56-26d2-48d7-96d8-c8b1e42ab938.jpg?v=1766117507&width=3840&quality=75)
The differences that matter
Skip the 40-row spec sheet. These are the specs that change how each board feels, sounds, and fits your desk.
GravaStar Mercury K1
NPK Club RO75 Pro
Hall effect (magnetic)
No
Yes
Battery
8,000 mAh
6,000 mAh
Switch options
Linear
Magnetic
Weight
1,080 g
1,680 g
QMK
No
Yes
- GravaStar Mercury K1
- NPK Club RO75 Pro
- Performance
- 6685
- Build quality
- 6782
- Productivity
- 6789
- Customizability
- 6486
- Portability
- 9292
- Layout size: 75%
- Connection: Bluetooth, 2.4 GHz, Wired
- Hot-swappable
- Case material: Aluminum
- Mount style: Gasket Mount
GravaStar Mercury K1 vs NPK Club RO75 Pro specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 25 specs differ
GravaStar Mercury K1
NPK Club RO75 Pro
Switch options
Hall effect (magnetic)
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Display
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
Compare prices
Live prices from the stores we track, cheapest in-stock offer first.
Lowest price across stores, Amazon excluded.
Prices in USD are converted to your currency and can change at any time. KeebFinder may earn a commission when you buy through these links, at no extra cost to you.
Not sold on either?
![[In Stock] RO75 75% Pre-Built Aluminum Mechanical Keyboard](https://cdn.shopify.com/s/files/1/0549/0262/0278/files/RO75-2.477.jpg?v=1744771062&width=3840&quality=75)
Still torn?
Answer a few quick questions and the keyboard finder ranks 2,000+ boards by how you will actually use yours.