BOYI
BOYI TD21 21-key hot-swap numpad, Bluetooth 5.0/2.4G/wired, PBT keycaps (Pink Cherry)
A 21-key hot-swap numpad with Bluetooth 5.0, 2.4 GHz wireless and wired modes, plus PBT keycaps
- Customise your workflow with 21 fully programmable keys
- Swap switches without soldering using hot-swap sockets for 3-pin and 5-pin compatibility
- Connect two devices simultaneously via Bluetooth 5.0, 2.4 GHz wireless or wired USB-C
- Keep typing in wired mode even when the battery is depleted
- Durable PBT keycaps in Pink Cherry resist shine and wear
Portable 21-key numeric keypad
The BOYI TD21 is a compact 21-key mechanical numpad designed for gamers, programmers and professionals who need a dedicated number pad alongside a laptop or compact keyboard. It connects via Bluetooth 5.0, 2.4 GHz wireless or wired USB-C and can pair with two devices simultaneously. Hot-swappable sockets accept most 3-pin and 5-pin mechanical switches so the typing feel can be changed without soldering.
Upgrading from embedded laptop keys
Users who rely on the number row or a cramped function-layer pad gain a full 21-key layout with programmable macros and N-key rollover over the wired connection. The jump is worthwhile when spreadsheets, data entry or gaming shortcuts demand faster, more tactile input than a built-in keyboard provides. If you already use a full-size mechanical keyboard with an integrated numpad, this unit adds no new keys.
Limits of the 2.4 GHz and Bluetooth 5.0 interfaces
Wireless range and stability depend on the host device's antenna and local RF congestion; the 2.4 GHz dongle occupies a USB-A port and shares spectrum with Wi-Fi and other peripherals. Bluetooth 5.0 pairing is limited to two concurrent devices and may introduce latency unsuitable for competitive gaming. Wired USB-C operation removes both constraints but tethers the pad to the host.
Highlights
- Customise your workflow with 21 fully programmable keys
- Swap switches without soldering using hot-swap sockets for 3-pin and 5-pin compatibility
- Connect two devices simultaneously via Bluetooth 5.0, 2.4 GHz wireless or wired USB-C
- Keep typing in wired mode even when the battery is depleted
- Durable PBT keycaps in Pink Cherry resist shine and wear
Specifications
No published specifications for this item yet.
Questions about this item
What switch sockets does the TD21 numpad accept for hot-swapping?
The board supports most 3-pin and 5-pin mechanical switches, letting you pull the installed switches and press in replacements without any soldering.
How do I pair the numpad to a second device over Bluetooth 5.0?
Hold the Bluetooth pairing key until the indicator flashes, then select the TD21 from the target device’s Bluetooth menu; the keypad can remember two devices simultaneously.
When should I expect to replace the PBT keycaps on this numpad?
PBT keycaps resist shine far longer than ABS, so replacement is only needed if a cap physically breaks or you want a different profile or colour.
Also in this aisle
People compared these
Same shelf, same checkout — eight coins and a 30-minute rate lock.
