[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit
[Group Buy] Theseus75 Keyboard Kit

[Group Buy] Theseus75 Keyboard Kit

Regular price SGD$665.00
Shipping calculated at checkout.


The images shown are renders of the product and are only used for illustration purposes. The end product may vary in color from the renders as they are not guaranteed to be 100% accurate to the end product.

Parts with a “chroma” finish comprise a random gradient of colours; results will vary for each finish.

Estimated arrival: Q4 2024 - Q1 2025, delays may happen.

iLumkb Group Buy Policy.

By purchasing this product, you are agreeing to the above terms.


Theseus75 - A balanced 75% split mechanical keyboard kit.

Although the “endgame” board may be a myth, this one might come close. Meet the Theseus75: a balanced 75% split mechanical keyboard kit designed by @haverworks. With magnetic interlocking, a LEMO-compatible interconnect, and a cushioned typing feel not often found in splits, the Theseus sports a unique combination of features that set this board apart from the rest. The best part? It’s the first split keyboard we know of to include integrated USB hub passthrough—perfect for connecting your mouse, macropad, or other peripheral companion. All these features fit behind a clean, unassuming aesthetic meant to be the perfect backdrop for any keycap set. With almost a dozen different colourways to choose from, you’re sure to find one that compliments your setup.


6° typing angle
20mm front height
36.6mm total height (case bottom to top)
Kit content weight: 6.44 lbs (2.923 kg)


75% XT (single macro column)
Switches: 88-91
Stabilizers: 3-5 (2U)
Exploded navigation cluster
Two 1U rotary encoders

PCB Specs

Designed by ebastler
QMK firmware w/ VIA support
RGB LED underglow
Caps lock LED (with VIA customization support)
Integrated USB 2.0 hubs
Dual-role USB-C ports (either port can function as hub or host connection)
Alps EC11 encoders w/ 1.5mm push travel
STM32G431 microcontrollers
uDB S1-inspired form-factor daughterboards
1.6mm black-core FR4, ENIG finish


6063 aluminium frame w/ anodized or electrophoretic finish
Polycarbonate base w/ frosted finish
PVD coated brass knobs w/ gold, black, or chroma (rainbow) finish
Aluminium knob mounts
PORON gaskets and switch pads


Black-core FR4, ENIG finish (included)
5052 aluminum, anodized black
Polycarbonate, clear
POM, black
Carbon fiber

Silicone Parts:

50A and 70A grommets
70A knob mount O-rings
50A friction-fit feet (no adhesive required)


Hybrid system combining PORON foam gaskets and snap-in silicone grommets
Foam gaskets double as acoustic dampening between switch plate and PCB
Silicone grommets support both top-mount (with M2 screws) and friction-mount (screw-less) styles

Cable & Connections

Wired USB-C connectivity
LEMO-compatible EGG.1B.305 panel-mount sockets

Interconnect cable:

0.8m length
Woven PET outer sleeving
22/28 AWG conductors
Shielded USB data lines
LEMO-compatible FGG.1B.305 push-pull connectors

What's included:

Keyboard case (aluminium frame + polycarbonate base)
PCBs & daughterboards
Flat flexible cables (FFCs) for daughterboards
LEMO-compatible panel-mount connectors w/ cable
LEMO-compatible interconnect cable
FR4 plate
PORON plate gaskets
PORON switch pads
Knob mounts
Knob mount set screws
Knob mount silicone o-rings
Friction-fit silicone feet (1 set black + 1 set white)
Silicone grommets (1 set 50A (blue) + 1 set 70A (purple))
Grommet screws
Daughterboard screws
Case screws
Plate standoffs and screws
Assorted tools
Custom carrying case