Xkey 37 USB Limited Edition MIDI Keyboard - Ultra-Thin Portable

Our review of the Xkey 37 USB Limited Edition finds it best suited to mobile musicians who want full-size piano feel without a heavy case. The standout reason to buy is its combination of 37 full-size velocity-sensitive keys and polyphonic aftertouch in a package under 2 lbs and just 0.6 in thick, which delivers expressive control and easy transport for studio sessions, live sketching, and travel. It is a clear choice when keyboard action and compactness matter more than onboard synth engines or large control surfaces.

Key Features

• Authentic CME Xkey enhanced: Provides the genuine Xkey hardware experience upgraded for smoother MIDI performance and expressive playing.
• Full-size precision keys: The 37 velocity-sensitive keys with polyphonic aftertouch give nuanced dynamic response across the keyboard for realistic performance feel.
• Ultra-portable design: At roughly 0.6 in thick and under 2 lbs with an anodized aluminum frame, the unit fits easily into backpacks for musicians on the move.
• Plug-and-play compatibility: Works with PC, Mac, iPhone, iPad and many other devices across major OSs without drivers, simplifying setup in varied environments.
• Low-latency expressive control: Delivers responsive real-time performance and maps easily to DAWs and virtual instruments via the complimentary Xkey Plus app.

Who It's For

The Xkey 37 is aimed at producers, composers and performing musicians who prioritize realistic key action and expressive control while traveling or working in small studios. It is ideal for users who pair portable hardware with laptop or tablet-based DAWs and virtual instruments and who want a rugged metal chassis rather than plastic.

Musicians who need extensive onboard controls, multiple faders, pads or standalone sound engines should look elsewhere, as this controller focuses on compact, piano-style playability rather than being a full-featured workstation.

Pros & Cons

Pros

• Excellent build quality with a solid anodized aluminum frame that feels durable and premium.
• Expressive performance due to full-size velocity-sensitive keys and configurable polyphonic aftertouch.
• Truly portable at under 2 lbs and a 0.6 in profile, making it easy to carry for mobile sessions.
• Wide compatibility and plug-and-play convenience across major platforms without drivers.

Cons

• No included cable; users must provide a compatible USB or MIDI interface cable for some setups.
• Some users report occasional compatibility quirks with certain laptop setups, so testing with your host system is recommended.

Specifications

Product	Xkey 37 USB Limited Edition MIDI Keyboard
Keys	37 full-size velocity-sensitive keys
Aftertouch	Polyphonic aftertouch (configurable via Xkey Plus app)
Thickness	Approximately 0.6 in
Weight	Under 2 lbs
Frame	Anodized aluminum (not plastic)
Compatibility	Windows, macOS, iOS, Linux, Android (plug-and-play)

Our Verdict

The Xkey 37 USB Limited Edition is a strong choice for musicians who need portable, full-size piano action and expressive control in a rugged, ultra-thin package. It represents good value for those who prioritize playability and build quality over extra onboard controls, and the included warranty and support make it a dependable studio or travel companion.

Frequently Asked Questions

Does the keyboard require drivers?
No, the Xkey 37 is designed for plug-and-play operation across major operating systems without the need for drivers.

Is a cable included?
No, the package does not include the Xcable; you will need an appropriate USB or MIDI interface cable for some setups.

Can the aftertouch be adjusted?
Yes, polyphonic aftertouch behavior and mappings can be configured using the free Xkey Plus app.