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Head to head · Prices checked Nov 11, 2026

AULA F75 vs Redragon UCAL MAX K673Aluminum vs Plastic Build

Choose the AULA F75 for its superior build materials and verified performance features, or the Redragon K673 for a more budget-conscious entry into the 75% wireless format.

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Aluminum

AULA F75

EPOMAKER x AULA F75

4.5 (510)

$42at Epomaker

90-day low

UCAL MAX K673

No reviews

$59at Redragon

90-day low

Quick verdict

Which one should you get?

Get the

AULA F75

Aluminum

Build quality in the top 30% of 75% boards under $50.

If you want

  • Hybrid plastic and aluminum case construction for a sturdier feel.
  • Detailed five-layer sound dampening with Poron foam, IXPE, PET, and silicone pads.
  • Includes verified gaming features like a 1000 Hz polling rate and Rapid Trigger.

Rules this board out

  • North-facing LEDs. Cherry-profile keycaps can hit the switch housing.
  • South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.

Get the

Redragon UCAL MAX K673

Plastic Build

Build quality in the bottom 45% of 75% boards under $100.

If you want

  • Generally more affordable than the AULA F75.
  • Includes four spare switches in the box, according to its package contents.
  • Lists Bluetooth 3.0/5.0 support in its vendor description.

Bottom line

The AULA F75 is the recommended choice for most users willing to spend a bit more, as it delivers tangible upgrades in build quality, acoustic engineering, and feature completeness. Opt for the Redragon UCAL MAX K673 if your budget is strictly limited and you prioritize the basic 75% wireless gasket mount formula over premium materials and advanced features. The core differentiator remains the AULA's aluminum-reinforced build versus the Redragon's all-plastic construction.

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 F75

Redragon UCAL MAX K673

  • Switch options

    Linear, Silent

    Linear

  • Weight

    1,023 g

    1,200 g

    Heavier boards stay planted and lighter ones travel

  • Keycaps

    ABS, PBT

    PBT

  • Screw-in stabilizers

    Yes

    No

    Easier to tune than the plate-mount stabs you get prebuilt

  • Backlight

    RGB, south-facing

    RGB

    RGB for looks and low light rather than speed

KeebFinder scores

How we score
  • AULA F75
  • Redragon UCAL MAX K673
Performance
81
66
Build quality
76
62
Productivity
93
69
Customizability
82
59
Portability
83
75

What they share

  • Layout size: 75%
  • Connection: Bluetooth, 2.4 GHz, Wired
  • Hot-swappable
  • Battery: 4,000 mAh
  • Case material: Plastic
  • Mount style: Gasket Mount
See every spec side by side

Best for

What will you mostly use it for?

The AULA F75 is the more capable keyboard across most scenarios, particularly for gaming, office, and modding use, due to its detailed acoustic design, verified gaming features, and hybrid aluminum construction. The Redragon UCAL MAX K673 remains a functional alternative with a similar core wireless feature set, potentially appealing for travel due to its listed dimensions and lower price point. For programming and content creation, the AULA's premium keycaps and additional feature assurances give it the edge.

For gaming

Pick the AULA F75

  • The AULA F75 lists a 1000 Hz polling rate, which the Redragon's specifications do not mention.
  • AULA's product page explicitly mentions an 'ultra-responsive, low-latency connection' for gaming.
  • The AULA F75 includes Rapid Trigger as a listed feature, which is not stated for the Redragon K673.

Full specs

AULA F75 vs Redragon UCAL MAX K673 specs

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

10 of 23 specs differ

AULA F75

Redragon UCAL MAX K673

Typing & switches

Switch options

Linear, Silent
Linear

Hot-swappable

Yes
Yes

Mount style

Gasket Mount
Gasket Mount

Sound dampening

Yes
Yes

Screw-in stabilizers

Yes
No

Layout

Layout size

75%
75%

Layout standard

ANSI
ANSI

Ergonomics

Standard
Standard

Knob

Yes
Yes

Display

None
None

Media keys

Yes
No

Connectivity & battery

Connection

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

Max polling rate

1,000 Hz
—

Battery

4,000 mAh
4,000 mAh

USB-C

Yes
Yes

Build & materials

Case material

Plastic
Plastic

Keycaps

ABS, PBT
PBT

Weight

1,023 g
1,200 g

Dimensions

43 x 143 x 323 mm
37 x 335 x 37 mm

Backlight

RGB, south-facing
RGB

Firmware & software

N-key rollover

Yes
No

Mac & Windows

Yes
No

Extras

Released

2023
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 F755 stores

FAQ

AULA F75 vs Redragon UCAL MAX K673: your questions

The AULA F75 has a hybrid plastic and aluminum case, while the Redragon UCAL MAX K673 uses a plastic case. The AULA's inclusion of metal typically contributes to a more solid and premium feel. The AULA listing also details a more complex internal construction with multiple foam and padding layers.

The Redragon K673 lacks specific gaming-oriented specifications like a stated polling rate or features such as Rapid Trigger, which are listed for the AULA F75. While it is a mechanical keyboard with linear switches, the AULA F75 provides more verifiable data for gaming performance, including a 1000 Hz polling rate.

Yes, both the AULA F75 and Redragon UCAL MAX K673 feature hot-swappable sockets. The Redragon vendor page specifies its socket is compatible with nearly all 3-pin and 5-pin switches.

Both keyboards are equipped with a 4000mAh rechargeable lithium battery. Actual battery life will depend on usage patterns and RGB lighting settings. Neither listing provides an estimated hours-of-use runtime.

The AULA F75 lists Mac/Win support in its extra features. However, its downloadable software is noted to support Windows systems only, so advanced customization may be limited on macOS.

The AULA F75 is the stronger candidate for quiet typing. It offers silent switch options and its vendor description details a five-layer sound-dampening system including Poron foam and a silicone pad. The Redragon K673 lists sound absorbing pads but does not specify silent switches.

The AULA F75 uses Cherry-profile double-shot PBT keycaps. The Redragon UCAL MAX K673 uses OEM-profile PBT keycaps with glowing letters. Cherry profile is typically lower than OEM profile.

Yes, both keyboards support software for customization. The AULA F75 has downloadable software for Windows. The Redragon K673 vendor page mentions 'Pro Software Supported' for creating macros and effects.

According to its vendor page, the Redragon UCAL MAX K673 package includes the keyboard, a detachable USB Type-C cable, a keycap & switch puller, a nano receiver, four spare switches, a user manual, and a sticker.

Both keyboards use a gasket mount structure. The Redragon vendor description calls it 'Redragon Gasket Out,' using precision-locked covers with gaskets for noise reduction and flexibility. The AULA description states it uses a gasket structure but does not give it a specific name.

The AULA F75 vendor description states it features 'factory-lubricated mechanical switches.' The Redragon K673 listing does not mention pre-lubrication for its included Mint Mambo linear switches.

Portability is close. Both are 75% layouts. The Redragon K673 lists dimensions of 37 x 335 x 37 mm, while the AULA F75 is 43 x 143 x 323 mm. The Redragon's listed profile is thinner, but it is also heavier at 1200g versus the AULA's 1023g.

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