Rockpi

=== rockpi ===
https://www.aliexpress.com/item/1005003667507535.html $55' AliExpress SmartFly Tech CO.,Ltd., store 1382212 
ROCK3 features a quad core Cortex-A55 ARM processor, 32bit 3200Mb/s LPDDR4, up to 4K@60 HDMI, MIPI DSI, MIPI CSI, 3.5mm jack with mic, USB Port, GbE LAN, PCIe 3.0, PCIe 2.0, 40-pin color expansion header, RTC. Also, ROCK3 supports USB PD and QC 
ROCK PI 3A 2GB/4GB/8GB SBC Rockchip RK3568 Single Board Computer support Coral TPU Android11 AI Deep Learning
Neural Processing unit(NPU) supports Pytorch , Kerras etc. avoids the high wattage of GPU. VPU 4K 60fps video decoding and 1080p 100fps encoding. GPU supports Vulkan.
=== other ===
https://www.youtube.com/watch?v=C4p9EpjA0ZM ROCKPI4 rasp form factor, two usb3 ports. See https://wiki.radxa.com/Rockpi4
=== jargon ===
https://en.wikipedia.org/wiki/Vision_processing_unit (VPU) distinct from https://en.wikipedia.org/wiki/Graphics_processing_unit (GPU) 
https://en.wikipedia.org/wiki/Neural_processing_unit (NPU) or https://en.wikipedia.org/wiki/AI_accelerator 
=== links ===
Raspberry pi
Category:Rasberry pi