# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**2 device listed.**

## NanoPi R4S

FriendlyElec NanoPi R4S — RK3399-powered dual-Gigabit Ethernet router SBC with up to 4GB LPDDR4 RAM, 16GB eMMC, and microSD, popular for OpenWRT and home network gateway builds.

[Details](https://openhardware.directory/devices/friendlyelec-nanopi-r4s) | [Markdown](https://openhardware.directory/devices/friendlyelec-nanopi-r4s/md)

## NanoPi M4 V2

FriendlyElec NanoPi M4 V2 — RK3399 SBC with 4GB LPDDR4, 4× USB 3.0, M.2 expansion slot, eMMC module support, and 40-pin GPIO for demanding Linux desktop and NAS builds.

[Details](https://openhardware.directory/devices/friendlyelec-nanopi-m4-v2) | [Markdown](https://openhardware.directory/devices/friendlyelec-nanopi-m4-v2/md)