A while back I bought a Raspberry Pi zero (non-wireless) to use as a network share. It works fine for the small text files I needed it for! But then I attached my 1TB external SSD to share my video files also and discovered the transfer speed was… 512KBps! After much troubleshooting, I found the culprit was the micro-USB to Ethernet adapter I was using was limited to USB 1.1 speeds, despite otherwise being a USB 2.0 device. And apparently, this is pretty much the same with all micro-USB-to-ethernet adapters. Yikes!
So I’d like to upgrade, as I can salvage the zero into another unrelated project I had planned. I’d like to have at least a 20MBps transfer speed, which would be about 160Mbps. I’d need either 1Gbps ethernet or 5GHz Wifi. Would the Raspberry Pi 3 Model A+ be a viable solution? https://core-electronics.com.au/raspberry-pi-3-model-a-plus.html
My only worry is that the USB port might be the bottleneck, I’ve found no where that mentions what version that USB port is, just that it exists. Since it’s relatively recent, I would assume it’s USB 2.0, but that doesn’t guarantee that it will work in high speed mode (450Mbps), which would be more than enough for my needs. Just fast mode (12Mbps) is no good.
Basically I’m asking, what’s the max transfer speed of the Raspberry Pi 3 Model A+'s USB port? Has anyone tried it with an external SSD before?