Keychron K2 [K4, K8, K10, etc.] Ultra 8K  Keyboard Review

The Keychron K2 Ultra 8K boards are excellent for gaming. They have outstanding build quality and remarkably low latency, with support for an 8000Hz polling rate that helps keep latency performance consistent. Together, these strengths make them well-suited for casual or competitive gaming. They also have RGB backlighting and robust web-based software for customization. However, the keycaps lack shine-through legends, making them difficult to read in dim lighting.

The Keychron K2 Ultra 8K keyboards are satisfactory for use with mobile devices or tablets. They support Bluetooth pairing with up to three devices and provide outstanding build quality and excellent typing quality. Smaller models, such as the K2 Ultra 8K variant we tested, are fairly easy to carry around, but the thick aluminum frames make all variants quite heavy, and their tall profile makes them bulky to pack in a bag.

The Keychron K2 Ultra 8K keyboards are great for programming. They have outstanding build quality, with extremely sturdy aluminum-and-plastic cases and durable PBT keycaps. They provide excellent typing quality, with smooth switches and consistent stabilizers, and support wireless connectivity with an included USB receiver or through Bluetooth, which also supports multi-device pairing. While the compact K2 Ultra 8K model we tested lacks dedicated macro keys, the full-size Keychron K10 Ultra 8K has four. Regardless of the model, you can assign macros to any key using the web-based customization software, which also lets you remap keys and customize the backlighting. Unfortunately, the keycaps lack shine-through legends, making them difficult to read in dim lighting.

The Keychron K2 Ultra 8K keyboards are disappointing for an entertainment or home theater PC setup. Their aluminum frames make them quite heavy, and even the compact K2 Ultra 8K model we tested is fairly bulky, making these keyboards awkward to use from a couch without a nearby table. That said, they have outstanding build quality and connect wirelessly with an included USB receiver or through Bluetooth, which supports pairing with up to three devices. Unfortunately, while they have media hotkeys, they lack dedicated media keys, and their keycaps lack shine-through legends, making them difficult to read in the dark despite the RGB backlighting.

The Keychron K2 Ultra 8K keyboards deliver remarkably good raw performance with outstanding single-key and multi-key latency, making them suitable for playing competitive games in any genre. They also support a polling rate of 8000Hz, which helps produce highly consistent latency performance. By default, they support 6KRO, allowing them to register up to six non-modifier keys simultaneously. You can switch to full NKRO with a keyboard shortcut, allowing them to register all keys simultaneously.