Mechanical keyboards tend to advertise their depth; the Altar II nearly erases it. Electronic Materials Office has compressed a 75-percent layout, physical switches, haptics, and wireless hardware into a 4.75mm-thick aluminum body.

The keyboard measures 299 by 116.5 mm and is machined from a single piece of 6061 aluminum. Its custom scissor-mechanical mechanism uses two steel arms and a retention spring, with 40gf actuation and 1.8mm of travel. Keycaps use REGEN polymer containing at least 50 percent recycled material.

A dual-layer silicone membrane and elastomer footpad isolate vibration, while red backlighting responds to ambient light.

A removable magnetic M-Dial handles volume and media controls, with standard and low-profile versions included. The Harmonic Synthesiser adds adjustable haptic feedback and notification taps, and a built-in speaker supplies restrained system sounds. Bluetooth 5.0 LE supports two devices alongside USB-C, with claimed battery life of up to 30 days. A native macOS app manages remapping, shortcuts, lighting, audio, and haptics.

The design is considerably more ambitious than the brand’s recycled-plastic Altar I, but it remains preproduction hardware. Electronic Materials Office plans a Kickstarter launch on November 10, with delivery targeted for early summer 2027.

A refundable $1 reservation unlocks a $249 tier; campaign pricing then rises to $279 for 48 hours and $299 thereafter, before a projected $349 retail price. Specifications and timing may change before fulfillment.