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Compact 75% mechanical keyboard, aluminum alloy exoskeleton with gradient black finish, linear switches, RGB backlighting

usbroway

usbroway Mercury K1 75% Gradient Black Linear Switches Gaming Keyboard

SKU CH-3TEC-4F8EC

A 75% wireless mechanical keyboard with gasket mounting, custom linear switches and tri-mode connectivity for gaming or typing

  • Keyboard layout75%
  • Aluminium exoskeleton gives strength and lightness for stable typing
  • Custom GravaStar x Kailh linear switches with 40gf actuation for quick response
  • Gasket mount plus five foam layers absorb vibration and reduce noise
  • Tri-mode connectivity via USB-C, Bluetooth 5.0 and 2.4 GHz wireless
  • 75 % compact layout saves desk space while keeping function keys

Mercury K1 75% Gradient Black Linear Keyboard

The Mercury K1 is a compact 75% wireless mechanical gaming keyboard built around an aluminium alloy exoskeleton with a gradient black finish. It uses exclusive GravaStar x Kailh linear switches rated at 40gf actuation force with 1.5mm pre-travel and 3.5mm total travel for quick response. Tri-mode connectivity covers wired USB-C, Bluetooth 5.0 and 2.4GHz wireless for Windows and Mac systems.

Installing the Mercury K1

The keyboard arrives assembled and hot-swappable, so switch changes need no soldering. Connect via USB-C for wired use, pair over Bluetooth 5.0 or plug the 2.4GHz dongle for wireless operation. The gasket-mounted structure with five foam layers dampens sound, but the aluminium case can still transmit vibration on hard desks. Ensure the correct OS layout is selected in software to avoid key-mapping mismatches.

Compact Wireless Gamers and Typists

The 75% layout suits users who want arrow keys and function row access in a smaller footprint with tri-mode flexibility. Customisable RGB lighting and software per-key programming appeal to enthusiasts who fine-tune their setup. Buyers who need a dedicated number pad or prefer tactile or clicky switch feedback should look at other form factors or switch types.

How it compares

Measured against everything we stock in Keyboards for PC Gaming, at today’s prices. Recalculated every night.

Price $201.99
Pricier than about 90% of the 3,966 comparable items (median $68.99).

Specifications

Size & build
Keyboard layout75%

Questions about this item

How can I confirm the GravaStar x Kailh linear switches are registering every keystroke correctly after setup?

Open a keyboard tester in Windows or Mac, press each of the 75% layout keys, and verify every press lights up on screen; the 1.5 mm pre-travel and 3.5 mm total travel should feel consistent across the board.

What comes in the box with the Mercury K1 and what must I purchase separately?

The keyboard, a USB-C cable for wired mode, a 2.4 GHz wireless dongle, and keycap/switch pullers are included; no extra items are required for tri-mode operation.

Which version of the Mercury K1 should I choose if I want the lightest actuation force?

This Gradient Black model ships with the custom GravaStar x Kailh linear switches rated at 40 gf actuation force, the only switch option offered for this SKU.

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