Head to head · Prices checked Nov 14, 2026

Sirius Ursa Major V2 vs Leobog Hi75C

Get the Sirius Ursa Major V2 for knob and qmk.

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Knob

Sirius Ursa Major V2

[In Stock] Ursa Major V2 Wireless Aluminum Ultimate Keyboard

from$399at Velocifire

Compare 2 stores

Leobog Hi75C

from$29at Mechkeys

Compare 2 stores

Quick verdict

Which one should you get?

Get the

Sirius Ursa Major V2

Knob

$399 at Velocifire

Get the

Leobog Hi75C

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

Rules this board out

No numpad.

$29 at Mechkeys

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.

Sirius Ursa Major V2

Leobog Hi75C

Connection
Bluetooth, Wired
Bluetooth, 2.4 GHz, Wired
Wireless for several devices and wired for lower latency
Ergonomics
Split
Standard
Knob
Yes
No
Display
None
LED
A case display rather than a typing feature
QMK
Yes
No
The deep option when you want to remap every key

KeebFinder scores

How we score

Sirius Ursa Major V2
Leobog Hi75C

Performance: 68
52
Build quality: 82
71
Productivity: 98
75
Customizability: 91
82
Portability: 90
80

What they share

Hot-swappable
Max polling rate: 1,000 Hz
Case material: Aluminum

See every spec side by side

Full specs

Sirius Ursa Major V2 vs Leobog Hi75C specs

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

11 of 25 specs differ

Spec

Sirius Ursa Major V2

Leobog Hi75C

Typing & switches

Hot-swappable

Yes

Mount style

—

Gasket Mount

Sound dampening

Yes

Screw-in stabilizers

Yes

Layout

Layout size

—

75%

Layout standard

ANSI

—

Ergonomics

Split

Standard

Knob

Yes

Display

None

LED

Connectivity & battery

Connection

Bluetooth, Wired

Bluetooth, 2.4 GHz, Wired

Max polling rate

1,000 Hz

Battery

2,400 mAh

—

USB-C

Yes

Build & materials

Case material

Aluminum

Plate material

FR4

—

Keycaps

—

PBT

Weight

1,400 g

—

Dimensions

14 x 36 x 4 mm

—

Typing angle

5°

—

Backlight

None

RGB

Firmware & software

QMK

Yes

VIA

Yes

N-key rollover

Yes

Mac & Windows

Yes

Extras

Released

2025

2026

Where to buy

Compare prices

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

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Lowest price across stores, Amazon excluded.

Sirius Ursa Major V22 stores