GravaStar Mercury K98 Pro 98% Mechanical Gaming Keyboard, Phantom Black, Dual 8000Hz

The GravaStar Mercury K98 Pro – Phantom Black is a premium 98% mechanical gaming keyboard for players and creators who want dedicated number entry without the full footprint of a traditional full-size board. It combines tri-mode connectivity, dual 8000Hz polling in wired and 2.4GHz modes, an aluminum-alloy exoskeleton, an integrated 1.65-inch TFT display and a high-capacity 8000mAh battery.

Key Features

• Optimized 98% layout: 98 keys plus a multifunction control knob retain number-pad productivity in a more space-efficient arrangement.
• Dual 8000Hz polling: the maximum polling rate is supported in both wired USB-C and compatible 2.4GHz wireless modes.
• GravaStar UFO mechanical switches: pre-lubed linear switches rated for 70 million presses deliver a smooth, consistent key feel.
• 1.65-inch TFT dashboard: displays supported system information, keystroke data and custom animations.
• Tri-mode connection: switch between USB-C wired, Bluetooth 5.4 and the included high-speed 2.4GHz receiver.
• 8000mAh rechargeable battery: manufacturer-rated up to 228 hours in 1K mode with RGB off, or up to 166 hours in 8K mode with RGB off.

Important tradeoff: at 460 × 170 × 62.5 mm and approximately 1.55 kg, the K98 Pro prioritizes premium construction, number-pad access and desk presence over portability.

Specifications

In the Box

• GravaStar Mercury K98 Pro keyboard
• High-speed 2.4GHz wireless receiver
• 1.6m Type-C braided cable
• USB Type-A to Type-C adapter
• Keycap and switch puller kit
• Four GravaStar UFO mechanical sample switches
• Cleaning brush and microfiber cleaning cloth
• User manual

Buyer Guidance

Choose the K98 Pro if you regularly use a number pad but still want a more efficient layout than a traditional full-size board. Use wired or 2.4GHz mode for the advertised 8000Hz polling capability; Bluetooth is intended for flexible device connection rather than the maximum polling mode. Battery runtime varies with polling rate, lighting, display use and operating conditions.

Frequently Asked Questions

Is the Mercury K98 Pro Hall Effect?

No. This exact Phantom Black K98 Pro uses GravaStar UFO mechanical linear switches.

Does it include a number pad?

Yes. The optimized 98% layout retains a dedicated number section while reducing unused spacing.

Which modes support 8000Hz polling?

GravaStar specifies 8000Hz operation in wired USB-C and 2.4GHz wireless modes. Bluetooth is not listed for 8000Hz operation.

Is the 2.4GHz receiver included?

Yes. The exact official package list includes a high-speed 2.4GHz receiver.

Is it hot-swappable?

The supplied product name states hot-swappable, but the exact Phantom Black official specification page does not define the compatible socket standard. Confirm switch compatibility from the retail package or manual before purchasing replacement switches.

What key legend is supplied?

The exact regional legend has not yet been verified from the Arab Gamers retail package. Confirm the physical unit before activation if a specific language legend is required.

View official GravaStar product information