Epomaker TH33 vs Zuoya GMK21 NumpadWireless or QMK?
Choose the TH33 for tri-mode wireless and a ready-to-use numpad, or the GMK21 if you want a DIY kit with QMK support.
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Which one should you get?
Get the
Epomaker TH33
Sound dampening
Build quality in the top 20% of Numpad boards under $50.
- Tri-mode connectivity includes Bluetooth, 2.4 GHz, and wired USB-C.
- Gasket mount and five named sound-dampening layers, including IXPE and PET.
- PBT keycaps, linear switches, and hot-swap support.
- South-facing LEDs. Shine-through legends stay dark, and some sculpted keycaps can clip the LED.
Get the
Zuoya GMK21 Numpad
QMK
Build quality in the top 10% of Numpad boards under $50.
- DIY kit or barebones format for buyers who want to assemble a numpad.
- Supports both QMK and VIA.
- 5-pin hot-swappable sockets.
Pick the Epomaker TH33 if you want a numpad that is already equipped with switches and keycaps, supports three connection modes, and includes a 2000mAh battery. Choose the Zuoya GMK21 if your priority is a barebones build with QMK, VIA, and 5-pin hot-swap sockets. Both offer a knob, but their different key counts and intended formats make them suited to different workflows.
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.
Epomaker TH33
Zuoya GMK21 Numpad
QMK
No
Yes
The deep option when you want to remap every key
Sound dampening
Yes
No
Backlight
RGB, south-facing
RGB
RGB for looks and low light rather than speed
N-key rollover
Yes
No
Mac & Windows
Yes
No
- Epomaker TH33
- Zuoya GMK21 Numpad
- Performance
- 7861
- Build quality
- 7779
- Productivity
- 8865
- Customizability
- 8394
- Portability
- 9065
- Layout size: Numpad
- Hot-swappable
- Knob
- VIA
What will you mostly use it for?
The TH33 is the more convenient choice for gaming, office work, travel, and custom content-creation controls, thanks to its wireless modes and complete feature set. Programming is a close call because both support VIA, while the GMK21 adds QMK and the TH33 offers more listed keys. For hands-on building and switch changes, the GMK21's barebones format and 5-pin hot-swap sockets make it the more fitting option.
Pick the Epomaker TH33
- The TH33 lists a 1000 Hz polling rate and linear switches.
- It supports wired and 2.4 GHz connections as well as Bluetooth.
- The GMK21 listing does not specify a polling rate or switch type.
Epomaker TH33 vs Zuoya GMK21 Numpad specs
Every tracked spec, side by side. Rows marked with a dot differ between the boards.
7 of 25 specs differ
Epomaker TH33
Zuoya GMK21 Numpad
Switch options
Hot-swappable
Mount style
Sound dampening
Layout size
Layout standard
Ergonomics
Knob
Display
Connection
Max polling rate
Battery
USB-C
Case material
Plate material
Keycaps
Weight
Dimensions
Typing angle
Backlight
QMK
VIA
N-key rollover
Mac & Windows
Released
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Epomaker TH33 vs Zuoya GMK21 Numpad: your questions
Yes. Epomaker lists Bluetooth and 2.4 GHz wireless, as well as a wired connection, for the TH33.
The GMK21 listing specifies QMK/VIA compatibility, hot-swap sockets, and multicolor backlighting, but does not list wireless connectivity. The TH33 explicitly supports Bluetooth and 2.4 GHz wireless.
The TH33 is listed with VIA support. QMK support is listed for the Zuoya GMK21, not the TH33.
Yes. The GMK21 vendor listing identifies it as VIA-compatible and also lists QMK compatibility. The product metadata likewise lists VIA support.
Epomaker describes the TH33 as a 33-key numpad. The GMK21 listing specifies 20 keys with a knob.
Both products are listed as hot-swappable. The TH33 vendor description specifies compatibility with 3-pin and 5-pin mechanical switches, while the GMK21 listing specifies 5-pin hot-swappable sockets.
The TH33 has a listed 1000 Hz polling rate and linear switches, making it the more clearly specified option for gaming. The GMK21 listing does not state a polling rate or switch type.
Yes. The TH33 is listed with a 2000mAh rechargeable battery and Bluetooth and 2.4 GHz connectivity. The GMK21 product listing does not specify a battery.
The GMK21 is sold as a DIY or barebones kit and lists QMK, VIA, and 5-pin hot-swap sockets. The TH33 is also hot-swappable and supports VIA, but its listing describes it as pre-built.
The TH33 has south-facing LEDs. Its compatibility rule warns that shine-through legends may stay dark and some sculpted keycaps can clip the LEDs.
Yes. The TH33 metadata lists knob support, and Epomaker describes a programmable knob. The GMK21 listing specifies a 20-key layout with a knob.
The TH33 is listed as pre-built and includes switches and PBT keycaps in its specifications. The GMK21 is identified as a DIY kit or barebones product, so it is the build-focused option.
Not sold on either?
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