Radxa
Radxa Zero 3W (RK3566 Pi Zero Alternative)
Pi Zero 2 W-sized SBC on the Rockchip RK3566 quad A55 - up to 8 GB LPDDR4 and 64 GB optional eMMC with Pi-compatible 40-pin GPIO.

By Rob1 min read
- SoC
- Rockchip RK3566 - quad-core Cortex-A55 @ up to 1.6 GHz
- GPU
- Mali-G52 2EE (OpenGL ES 3.2 / Vulkan 1.1)
- RAM
- 1 / 2 / 4 / 8 GB LPDDR4 (choose at purchase, not user-upgradable)
- Onboard storage
- Optional 0 / 8 / 16 / 32 / 64 GB eMMC (factory-soldered)
- External storage
- microSD slot (UHS-I)
- Wireless
- Wi-Fi 5 (802.11ac dual-band), Bluetooth 5.0
- Video out
- Mini-HDMI up to 1080p60
- USB
- 1× USB 3.0 (Type-C, data only) + 1× USB 2.0 OTG (Type-C, data + power)
- Ethernet
- None onboard - USB-to-Ethernet adapter or a Radxa expansion HAT required
- GPIO
- 40-pin header, Raspberry Pi-compatible pinout
- Form factor
- 65 × 30 mm - matches the Raspberry Pi Zero 2 W
- Operating systems
- Debian, Ubuntu, Armbian, Radxa OS (vendor-maintained)