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Head to head · Prices checked Nov 7, 2026

AULA F99 Pro vs GravaStar Mercury K196% Layout vs 75% Compact

Choose the AULA F99 Pro for a full-featured, value-focused 96% layout, or the GravaStar Mercury K1 for a more compact, premium aluminum build.

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Quick verdict

Which one should you get?

Get the

AULA F99 Pro

96% Layout

Build quality in the bottom 50% of 96% boards under $100.

If you want

  • 96% layout includes a number pad and arrow keys in a compact form.
  • Includes a programmable rotary knob for media or custom controls.
  • Vendor-listed five-layer sound dampening with specific foams and films.

Rules this board out

  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
  • Compact full-size layout. The numpad is present, the gaps of a full-size board are not.

Get the

GravaStar Mercury K1

75% Compact

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

If you want

  • Compact 75% layout saves considerable desk space.
  • Constructed with an aluminum alloy case for a premium feel.
  • Features a unique, vendor-described 'three-sided streamer' RGB lighting effect.

Rules this board out

  • No numpad.

Bottom line

Your primary need dictates the choice. If you require a number pad, value detailed acoustic tuning, or want a knob for controls, the AULA F99 Pro delivers exceptional functionality for its price. If your priority is a minimalist, premium aluminum keyboard that maximizes desk space and portability, the GravaStar Mercury K1 is the better investment, albeit at a higher cost.

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.

AULA F99 Pro

GravaStar Mercury K1

  • Layout size

    96%

    75%

  • Case material

    ABS

    Aluminum

  • Knob

    Yes

    No

  • Weight

    1,023 g

    1,080 g

    Heavier boards stay planted and lighter ones travel

  • Sound dampening

    Yes

    No

KeebFinder scores

How we score
  • AULA F99 Pro
  • GravaStar Mercury K1
Performance
66
66
Build quality
62
67
Productivity
83
67
Customizability
66
64
Portability
63
92

What they share

  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Battery: 8,000 mAh
  • Switch options: Linear
  • Mount style: Gasket Mount
See every spec side by side

Best for

What will you mostly use it for?

The AULA F99 Pro wins in scenarios demanding maximum key functionality, such as office work, programming, and content creation, thanks to its number pad and knob. The GravaStar Mercury K1 is the clear choice for travel due to its smaller 75% footprint. For gaming, the core features are similar enough to call a tie. Modders may favor the F99 Pro for its explicitly detailed acoustic foams and flex-cut PCB.

For gaming

It's a tie

  • Both feature gasket mount designs for a balanced typing feel.
  • Both offer tri-mode connectivity with 2.4 GHz wireless for low-latency options.
  • Both use linear switches, which are commonly preferred for gaming.

Full specs

AULA F99 Pro vs GravaStar Mercury K1 specs

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

8 of 19 specs differ

AULA F99 Pro

GravaStar Mercury K1

Typing & switches

Switch options

Linear
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
No

Layout

Layout size

96%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
No

Display

None
None

Connectivity & battery

Connection

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

Battery

8,000 mAh
8,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

ABS
Aluminum

Plate material

Plastic, Polycarbonate
POM

Weight

1,023 g
1,080 g

Dimensions

43 x 146 x 390 mm
46 x 343 x 156 mm

Backlight

RGB, south-facing
RGB

Firmware & software

Mac & Windows

Yes
Yes

Extras

Released

2024
2024

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.

AULA F99 Pro3 stores

FAQ

AULA F99 Pro vs GravaStar Mercury K1: your questions

The AULA F99 Pro is designed with more focus on acoustic dampening, listing five specific layers of foam and film to reduce echo. The GravaStar K1 uses a gasket mount and POM plate which can also provide a pleasant typing feel, but its vendor description does not detail similar internal sound-dampening materials.

No. The GravaStar Mercury K1 uses a 75% layout, which omits the number pad, function row, and navigation cluster to achieve a much smaller size. The AULA F99 Pro uses a 96% layout that retains the number pad.

Yes, both the AULA F99 Pro and the GravaStar Mercury K1 feature hot-swappable PCBs. This allows you to change mechanical switches without soldering. The GravaStar K1 vendor page specifically notes compatibility with 3-pin and 5-pin switches.

Both keyboards are listed with an 8000mAh battery capacity. Actual battery life will depend on usage patterns, RGB brightness, and connection mode, but on paper, they should offer comparable wireless endurance.

The AULA F99 Pro is suitable for gaming, offering tri-mode connectivity with a 2.4 GHz option for low latency, a gasket mount for stability, and linear switches. Customer reviews on the vendor page mention it feels suitable for games and has good response speed.

The key material difference is the case. The AULA F99 Pro uses an ABS plastic case, while the GravaStar Mercury K1 uses an aluminum alloy case. The K1's plate is made from POM, whereas the F99 Pro uses a PC (polycarbonate) plate.

Yes. The AULA F99 Pro is customizable with the AULA Driver software, according to the vendor description. This software allows for key mapping, RGB effect customization, and macro creation.

The GravaStar Mercury K1 is more portable. Its 75% layout measures 343mm in width, which is 47mm narrower than the 390mm wide AULA F99 Pro. This makes the K1 significantly easier to fit in a backpack or laptop bag.

Both come with linear switches. The AULA F99 Pro offers a choice between LEOBOG Nimbus V3 or Star Arrow linear switches. The GravaStar Mercury K1 uses custom Kailh linear switches, with options like Cherry Pink or Star Pink.

Yes, both keyboards feature RGB backlighting. The AULA F99 Pro specifically uses south-facing RGB LEDs, which can improve compatibility with certain aftermarket keycaps. The GravaStar K1 vendor highlights a unique 'three-sided streamer' lighting effect.

A gasket mount is a design where the plate holding the switches is suspended on soft gaskets within the case, rather than being screwed directly in. Both keyboards use this mount, which aims to dampen vibrations and provide a softer, more consistent typing feel.

Yes, slightly. The GravaStar Mercury K1 weighs 1080 grams, while the AULA F99 Pro weighs 1023 grams. The K1's aluminum construction contributes to its higher weight despite its smaller size.

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