CPU: Model: Rockchip RK3328 Number of Cores: Quad-Core -A53 Frequency: 4 x -A53 Up to 1.4GHz Memory RAM: 1GB DDR4 Storage Micro-SD Slot: Micro-sd x1 for external storage up to 128GB Flash: 32GB eMMC 5.1 Flash Connectivity Ethernet: 1 x Internal Gbps Ethernet x 1, RTL8211F chip 1 x USB3.0 converted Gbps Ethernet.RTL8153B chip Optional M.2 SDIO Wi-Fi USB USB 2.0 Host x 1: USB Type A 1x USB-C :5V power input and USB update in maskrom mode 1 x USB-C : onboard USB to Debug UART converter, 1500000bps bauds Pin-header Serial Debug Port x 1: 2.54mm pitch 3pin-header(3.3V TTL) LED 1 x SYS LED(Red) 1 x WAN LED(Green) 1 x LAN LED(Green) Button 1 x GPIO Button 1 x Maskrom mode Button Working Temperature: 0℃ to 70℃ Power: DC 5V/2A Due to different product batches, the appearance may be different, which does not affect use Colour:As Shown Material:PC+Metal type:B:1 x NanoPi R2S Plus, 1 x Metal Case Package Contents: 1 x NanoPi R2S Plus 1 x Metal Case Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.