GravaStar Mercury K1 Pro 75% Wireless Mechanical Gaming Keyboard, Gasket Compact Custom Keyboard Hot-Swap Socket, Linear Switches, with RGB Backlit & Frame (Galaxy Black)

Brand: GravaStar
Compatible Devices: PC, Laptop, Tablet (via wired or wireless)
Connectivity Technology: USB-C (wired), 2.4 GHz wireless, Bluetooth (tri-mode) GravaStar DE+2Newegg.com+2
Keyboard Description: Mechanical, high-performance gaming keyboard with premium build and compact layout
Recommended Uses For Product: Gaming, Programming, Everyday Use, Content Creation, Study
Special Features: Tri-mode connectivity, hot-swappable switches (3-pin & 5-pin), gasket-mounted structure, dual independent RGB lighting systems, large rechargeable battery, control knob GravaStar+1
Color: Galaxy Black (matte black aluminum alloy frame with futuristic, skeletal “cosmic” design) GravaStar DE+1
Keyboard Backlighting Color Support: Full RGB (16.8 million colours) with customizable lighting modes GAMERS.GE+1
Style: Sci-Fi / Cyberpunk / Premium compact “75%” format
Product Dimensions: 415 mm (Height) × 178.6 mm (Width) × 57.6 mm (Depth) (≈16.34″ × 7.03″ × 2.27″) GravaStar+1
Weight (with battery): ≈ 1.18 kg (≈ 2.60 lb) GravaStar+1

Key Features & Highlights

• Premium Metal Frame: Built from lightweight aluminum alloy to deliver durability and a premium feel. The skeletal “branches” around the keys give it a standout visual identity. GravaStar+1

• 75% Layout (with Knob): This keyboard adopts a compact 75% layout with approximately 79 keys plus a dedicated control/rotary knob — ideal for space-saving while retaining essential functionality. Newegg.com+1

• Custom Linear Switches: Equipped with GravaStar × Kailh “Speedy Mint” linear switches (45 gf actuation force, 1.2 mm pre-travel, 3.5 mm total travel), rated for ~70 million keystrokes. Perfect for fast, smooth input (gaming or typing). GravaStar DE+1

• Hot-Swappable: Allows easy replacement of switches without soldering (supports both 3-pin & 5-pin), which gives you flexibility for customization. GravaStar DE

• Gasket-Mounted + Sound Dampening: The keyboard features a gasket-mounted FR4 plate combined with five layers of sound-dampening foam — this results in a smoother, more refined typing experience with reduced vibration and better acoustics. Newegg.com+1

• Tri-Mode Connectivity: You can connect via wired USB-C, or go wireless via Bluetooth or 2.4 GHz dongle. This makes it versatile for different devices and usage scenarios. Level Up+1

• Large Battery: Comes with an 8000 mAh rechargeable battery, capable of extended wireless use depending on lighting/settings. Mac Center+1

• Dual RGB Lighting Systems: Two independent RGB lighting systems (one for keycaps, one for frame/backlight) support 16.8 million colours and 13+ lighting modes. The pudding-style PBT keycaps enhance the lighting effect. GravaStar

• Extras & Accessories: Included in the box are: USB-C cable, 2.4 GHz receiver (dongle), keycap & switch puller, cleaning brush/cloth, extra switches (various types) for customization. GravaStar DE+1

Why It Stands Out

• Design & Aesthetics: The “Galaxy Black” version brings a sci-fi inspired design with an aluminum alloy frame and branching skeletal structure that sets it apart visually from more conventional keyboards.

• Customization & Flexibility: With hot-swappable switches, dual lighting systems, a control knob, and tri-mode connectivity, the user has a lot of options to tailor the keyboard to their preferred feel, workflow, and devices.

• High Build Quality: The premium materials (aluminum alloy frame, Pudding PBT keycaps, gasket mount), together with the custom linear switches, deliver a high-end feel and typing/gaming experience.

• Compact Yet Functional: The 75% layout reduces desk footprint while still retaining the crucial keys and adding a programmable knob — good for both gaming and productivity.

• Wireless Freedom: Tri-mode support means you’re not constrained to just a wired setup; you can connect multiple devices (PC, laptop, tablet) and switch between them.

Things to Consider / Tips

• Weight: At ~1.18 kg, it is heavier than many compact plastic keyboards — may be less travel-friendly if you move your keyboard often.

• Price: Premium build and features come at a price — you’re paying both for the high-end materials/design and the “look”.

• Software/Customization: Some users note that while the lighting and macros are customizable, the software might not be as mature as some dedicated enthusiast brands. > “The design is very unique and subjective… if you do like this design, I say go for it.” Reddit

• Visual Preference Matters: The aesthetic is very bold and may not appeal to everyone — if you prefer minimalist or conservative design, it’s good to see it in real-life or look at more images.

• Switch Feel: The linear switches provide a smooth, quiet keystroke — good for fast gaming/typing — but if you prefer clicky or tactile switches you may want to swap them in (since hot-swappable) or choose another model.

• Keycap & Layout: Being a 75% layout, it may lack a separate number pad (depending on version) — make sure it suits your workflow.

• Battery/Lighting Trade-offs: Using heavy RGB lighting effects will reduce wireless battery runtime — if you use wireless, it might help to choose more conservative lighting or wired mode for extended sessions.