Olimex Neo6502kbd Puts a Real 6502 CPU in a Keyboard

Olimex Folds the Neo6502 Into a Keyboard Case

Olimex has released the Neo6502kbd, an all-in-one version of its Neo6502 retro computer that puts the whole system inside a wedge-shaped USB keyboard body. The genuinely interesting detail is that this is not emulation of a 6502 — there is a real Western Design Center W65C02 on the board, running 6502 machine code directly, at roughly 6.25 MHz.

• Processors: WDC W65C02 at about 6.25 MHz paired with an RP2040
• Memory: 64KB of RAM for the 6502 environment, 2MB of SPI flash on the RP2040 side
• Ports: four USB-A host ports, HDMI/DVI output, UEXT connector (I2C, SPI, UART at 3.3V), separate USB-C ports for power and programming
• Price: 50 euros, roughly $58, assembled, from the Olimex store

Why Pair a Real 6502 With an RP2040?

This is the part worth understanding, because it is a smart piece of system design rather than nostalgia for its own sake. The W65C02 does what it has always done: execute 6502 instructions. Everything the original machines needed a shelf of support chips for — memory emulation, video generation, USB host duties, audio, storage, firmware-controlled peripherals — is handled by the RP2040 sitting next to it.

The result is a machine that is authentic where authenticity matters and modern everywhere else. You write and run real 6502 assembly, but the output goes to an HDMI monitor at 320x240 with a 256-color palette, your storage is a USB flash drive, and your keyboard is the one built into the case. There is an integrated speaker with four-channel audio support, a power switch, and an optional SD card.

What You Can Run On It

Olimex ships Apple II emulation firmware on the board. The wider software list covers Oric Atmos emulation, NeoBasic and Morpheus, CP/M-65, Pascal, Tali Forth, an assembler, and C development through both CC65 and LLVM-MOS. That LLVM-MOS entry is the one that will interest people who want to write new software rather than replay old software — a modern optimizing compiler backend targeting a 45-year-old instruction set is a legitimately good way to learn how close to the metal a CPU can feel.

Is 50 Euros a Fair Price for an Open Hardware Retro Machine?

For what it includes, yes. The hardware and software are open source, with schematics, KiCad files and documentation published, so the board is a reference design as much as a product — you can modify it, fabricate it, or simply read it to understand how the pieces fit. Four USB host ports is unusually generous at this price and makes multiplayer or multi-peripheral setups practical without a hub.

The tradeoffs are the ones you would expect from a 320x240 output and 64KB of RAM: this is a learning machine and a retro machine, not a daily driver. That is the point. If you like this corner of the hobby, our writeup of Tomb Raider running on an ESP32-P4 covers a similar feat of doing a lot with very little, and the YuzukiNeko RISC-V board shows the modern end of the same form factor. More builds in our mini computers section.

Sources: LinuxGizmos — September 12, 2026; Olimex product page — September 2026; Hackster.io — September 2026.