Royal Kludge R75 vs Redragon UCAL K673 HEWireless or Rapid Trigger
Choose the R75 for wireless flexibility and broader customization, or the K673 HE for wired magnetic switches, Rapid Trigger, and 8,000Hz polling.
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Which one should you get?
Get the
Royal Kludge R75
Hot-swappable
Build quality in the top 20% of 75% boards under $100.
- Bluetooth, 2.4 GHz, and wired connectivity, with a 4000mAh battery.
- Hot-swappable linear switches, with the vendor specifying support for 3-pin and 5-pin switches.
- QMK/VIA support for remapping, macros, and key combinations.
Get the
Redragon UCAL K673 HE
Hall effect
Build quality in the bottom 35% of 75% boards under $100.
- Magnetic switches with Rapid Trigger, featuring a listed 0.1–3.4mm actuation range in the vendor description.
- Listed 8,000Hz polling rate.
- Gasket mount, RGB, and a dedicated control knob.
- Magnetic switches only. Standard MX switches will not fit.
Pick the Redragon UCAL K673 HE if your priority is wired gaming with magnetic switches, Rapid Trigger, and 8,000Hz polling. For a more versatile daily keyboard, the Royal Kludge R75 adds wireless modes, QMK/VIA, a battery, and broader switch-swap flexibility. The K673 HE's magnetic socket restriction is worth considering before buying replacement switches.
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.
Royal Kludge R75
Redragon UCAL K673 HE
Hall effect (magnetic)
No
Yes
Adjustable actuation helps in games and not in normal typing
Rapid trigger
No
Yes
Faster resets help in games and not in normal typing
Connection
Bluetooth, 2.4 GHz, Wired
Wired
Wireless for several devices and wired for lower latency
Hot-swappable
Yes
No
Switch changes without soldering
Switch options
Linear
Magnetic
- Royal Kludge R75
- Redragon UCAL K673 HE
- Performance
- 7294
- Build quality
- 7958
- Productivity
- 9363
- Customizability
- 8849
- Portability
- 7958
- Layout size: 75%
- Mount style: Gasket Mount
- Knob
- Sound dampening
What will you mostly use it for?
The K673 HE stands out for gaming, especially for buyers seeking magnetic switches, Rapid Trigger, and a stated 8,000Hz polling rate. The R75 takes the other categories through wireless connectivity, QMK/VIA support, and conventional hot-swappable linear switches. Its lower listed weight and built-in battery also make it the more travel-friendly option. Both share the same compact layout and gasket mount, so the main decision is between gaming-specific input features and broader flexibility.
Pick the Redragon UCAL K673 HE
- The K673 HE has magnetic switches and Rapid Trigger, features aimed at fast, adjustable key activation.
- Its listed 8,000Hz polling rate is a concrete gaming-focused advantage over the R75, which has no polling rate listed.
Royal Kludge R75 vs Redragon UCAL K673 HE specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
11 of 24 specs differ
Royal Kludge R75
Redragon UCAL K673 HE
Switch options
Hall effect (magnetic)
Rapid trigger
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Max polling rate
Battery
USB-C
Case material
Keycaps
Weight
Dimensions
Backlight
QMK
VIA
Mac & Windows
Released
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Royal Kludge R75 vs Redragon UCAL K673 HE: your questions
The K673 HE is the more gaming-focused option, with magnetic switches, Rapid Trigger, and a listed 8,000Hz polling rate. The R75 instead offers linear switches and tri-mode connectivity.
Yes. Redragon lists Rapid Trigger for the K673 HE and describes an adjustable actuation range of 0.1–3.4mm. Its magnetic switches are part of that gaming-focused feature set.
No. The K673 HE compatibility rule says it accepts magnetic switches only, and standard MX switches will not fit. The Royal Kludge R75 is hot-swappable and its vendor description specifies 3-pin and 5-pin switch support.
Yes. Its listed connectivity includes Bluetooth and 2.4 GHz, as well as wired mode. The R75 also has a 4000mAh battery.
No. The K673 HE is listed as wired-only, with USB-C connectivity. The Royal Kludge R75 is the option with Bluetooth and 2.4 GHz wireless modes.
The Royal Kludge R75 lists QMK and VIA support, and the vendor describes remapping keys and creating macros. The K673 HE vendor description refers to Windows and web-based driver support instead.
The Royal Kludge R75 is listed at 680g, while the Redragon UCAL K673 HE is 1,240g. The R75 also has wireless connectivity and a 4000mAh battery, so it can be used without a cable.
Yes. Both list knob support. The R75 vendor describes a metal volume knob, while Redragon describes the K673 HE knob as controlling volume, play or pause, and backlight.
The R75 is the more adaptable choice for programming because it supports QMK/VIA and hot-swappable linear switches. The K673 HE uses magnetic switches, and standard MX switches will not fit its sockets.
The R75 metadata lists PBT keycaps, and its vendor description identifies them as MDA-profile, double-shot PBT keycaps. The K673 HE listing does not specify keycap material.
Yes. The R75 has sound dampening listed, and its vendor describes poron cotton, IXPE foam, and sponge case foam. Redragon describes dampening components including PO foam, IXPE switch foam, a PET sound pad, socket foam, and a silicone bottom pad.
Yes. Both are listed as 75% ANSI keyboards, and Redragon specifies an 81-key layout for the K673 HE. The R75 vendor description also identifies an 81-key matrix.
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