Radxa Zero 3W
Expert rating7.5 / 10
- Processor:
- Rockchip RK3566
- Memory:
- Up to 8GB LPDDR4
- Wireless:
- WiFi 6
- USB:
- 1x USB 3.0 host (Type-C)
- Price:
- Starting at $15
Consumercarts is reader-supported. Learn more
Disclaimer: The price and specification of the given product may differ from the actual product. Please confirm on the retailer's website before buying.
Manufacturer: Radxa Last updated: September 11, 2026
Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick) Review
The Radxa Zero 3W packs a genuinely current RK3566 chip with WiFi 6 and Bluetooth 5.4 into the same ultra-compact 65mm x 30mm footprint as our Raspberry Pi Zero 2 W, starting at just $15, with configurations scaling up to 8GB of RAM, well beyond the Pi Zero 2 W's fixed 512MB ceiling.
Enthusiasts specifically search this out as a Pi Zero form-factor alternative when a project needs more memory or newer wireless standards than the Pi Zero 2 W offers, without stepping up to a larger board.
WiFi 6 in a Board This Small
Most ultra-compact SBCs in this size class still ship with older WiFi standards. Built-in WiFi 6 and Bluetooth 5.4 on the Zero 3W is a genuinely current wireless spec sheet, meaningful for projects that benefit from lower latency or better performance in congested WiFi environments even at this small scale.
USB 3.0 Where Competitors Often Cut Corners
A USB 3.0 host port alongside a USB 2.0 OTG port gives genuinely fast peripheral and storage connectivity in this tiny form factor, many ultra-compact competitors, including the Pi Zero 2 W, top out at USB 2.0 only.
Comparison to Alternatives
Against our Raspberry Pi Zero 2 W, the Zero 3W's higher RAM ceiling, WiFi 6, and USB 3.0 port are real practical advantages, offset by the smaller Radxa community and documentation base compared to the Raspberry Pi ecosystem. Against our Orange Pi Zero 3, both compete in the same ultra-compact tier, the Zero 3W's WiFi 6 and USB 3.0 give it a wireless and connectivity edge, the Orange Pi Zero 3 counters with built-in Gigabit Ethernet that the Zero 3W lacks.
Specifications
Identity
| Brand | Radxa |
|---|
| Memory | Up to 8GB LPDDR4 |
|---|---|
| Wireless | WiFi 6, Bluetooth 5.4 |
| Price | 15 USD |
| Model | Zero 3W |
| Processor | Rockchip RK3566, Quad-Core ARM Cortex-A55 @ up to 1.6GHz |
| GPU | Mali-G52 2EE |
| Storage | Onboard eMMC, microSD |
| USB | 1x USB 3.0 host (Type-C), 1x USB 2.0 OTG (Type-C) |
| Video Output | Micro HDMI, 1080p60 |
| Camera | 22-pin MIPI CSI |
| Dimensions | 65mm x 30mm |
Expert Review
Reviewed by Burooj Alam. Rated by us, not by users.
Expert rating7.5 / 10
The ultra-compact WiFi 6 pick for Pi Zero-form-factor projects needing more RAM or newer wireless.
Best for
- Pi Zero-form-factor projects needing more RAM headroom, WiFi 6, or USB 3.0 than the Raspberry Pi Zero 2 W offers.
Not for
- Buyers who specifically want the Raspberry Pi ecosystem's community size and documentation depth, Radxa's support base is smaller.
FAQs
What are the key specifications of the Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick)?
The Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick) is a single board computer from Radxa. Key specs: Processor Rockchip RK3566, Quad-Core ARM Cortex-A55 @ up to 1.6GHz, GPU Mali-G52 2EE, Memory Up to 8GB LPDDR4, Storage Onboard eMMC, microSD, Wireless WiFi 6, Bluetooth 5.4.
Will the Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick) work with my current setup?
The Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick) lists Processor is Rockchip RK3566, Quad-Core ARM Cortex-A55 @ up to 1.6GHz. Check that against the hardware you already own before buying, since this is the field that most often decides whether a part fits.
Who is the Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick) best suited to?
It suits pi zero-form-factor projects needing more ram headroom, wifi 6, or usb 3.0 than the raspberry pi zero 2 w offers..
What are the drawbacks of the Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick)?
It is a poor fit for buyers who specifically want the raspberry pi ecosystem's community size and documentation depth, radxa's support base is smaller..
Compare and read more
- Compulab IOT-GATE-iMX8 (Single-Board Computer/NXP i.MX 8M Quad/Quad-Core Cortex-A53/DIN-Rail Industrial IoT Gateway) vs Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick)
- Firefly ROC-RK3588S-PC (Single-Board Computer/Rockchip RK3588S/Octa-Core/8K Decode/UEFI Boot/AI Mainboard) vs Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick)
- ASUS NUC 13 Pro Board (Single-Board Computer/Intel Core i7-1360P (Raptor Lake)/Up to 64GB DDR5/Embedded NUC Motherboard) vs Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick)
- ASUS Tinker Board 3N (Single-Board Computer/Rockchip RK3568 Quad-Core Cortex-A55/LPDDR4X/Dual LAN/PoE PD/M.2 Expansion) vs Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick)
- Banana Pi BPI-F3 (Single-Board Computer/SpacemiT K1/Octa-Core RISC-V/Dual Ethernet/PCIe 2.1) vs Radxa Zero 3W (Single-Board Computer/Rockchip RK3566/Quad-Core Cortex-A55 1.6GHz/Up to 8GB LPDDR4/Ultra-Compact WiFi 6 Pick)