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Head to head · Prices checked Nov 11, 2026

GravaStar Mercury K1 vs Other MKC75

Get the Other MKC75 for knob and qmk.

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Quick verdict

Which one should you get?

Get the

GravaStar Mercury K1

Build quality in the top 50% of 75% boards under $150.

Rules this board out

  • No ISO layout. ISO-DE, UK, and other ISO variants are not offered.
$139 at WhatGeek

Get the

Other MKC75

Knob

Build quality in the top 15% of 75% boards under $200.

$39 at Input Gear

What actually differs

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

Other MKC75

  • Ergonomics

    Standard

    Split Spacebar

  • Mount style

    Gasket Mount

    Top Mount

  • Knob

    No

    Yes

  • Weight

    1,080 g

    1,592 g

    Heavier boards stay planted and lighter ones travel

  • QMK

    No

    Yes

    The deep option when you want to remap every key

KeebFinder scores

How we score
  • GravaStar Mercury K1
  • Other MKC75
Performance
65
72
Build quality
67
82
Productivity
67
83
Customizability
63
91
Portability
92
78

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Case material: Aluminum
See every spec side by side

Full specs

GravaStar Mercury K1 vs Other MKC75 specs

Every tracked spec, side by side. Rows marked with a dot differ between the boards.

12 of 22 specs differ

GravaStar Mercury K1

Other MKC75

Typing & switches

Switch options

Linear
—

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Top Mount

Sound dampening

No
Yes

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI, ISO

Ergonomics

Standard
Split Spacebar

Knob

No
Yes

Display

None
None

Connectivity & battery

Connection

Bluetooth, 2.4 GHz, Wired
Bluetooth, 2.4 GHz, Wired

Battery

8,000 mAh
—

USB-C

Yes
Yes

Build & materials

Case material

Aluminum
Aluminum

Plate material

POM
Aluminum, Polycarbonate, POM

Weight

1,080 g
1,592 g

Dimensions

46 x 343 x 156 mm
33 x 320 x 134 mm

Typing angle

—
7°

Backlight

RGB
RGB

Firmware & software

QMK

No
Yes

VIA

No
Yes

Mac & Windows

Yes
No

Extras

Released

2024
2026

For EU buyers

ISO layouts by store

Which stores sell ISO-DE, UK, and the other regional layouts.

GravaStar Mercury K1

No ISO layout at the stores we track.

Other MKC75

Listed on the product, not split by store: ISO.

Where to buy

Compare prices

Live prices from the stores we track, cheapest in-stock offer first.

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.

Lowest price across stores, Amazon excluded.

GravaStar Mercury K12 stores
Other MKC752 stores

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