Quote:
Originally Posted by Quoth
I don't have a USB SSD. I don't see the point of them for backup.
My point is that the connector used is almost unrelated to the USB speed version and something can have a USB 3.0 spec but not achieve as fast as a super fast SD Card on a USB 2.x speed due the nature of the device.
You can even have USB-C connector and less than USB 2.0 speeds.
Also the full speed of USB 3.0 isn't possible even with SSD to SSD, because that's the speed of the interface, there is the USB protocol overhead and the fact all USB is half-duplex.
No eink Ereader is going to get close to the limit of USB 2.0 speed. The kind of port has no effect. USB-C is used now because it's the standard for phones, tablets and similar gadgets, especially in EU and countries that use EU standards. USB-C isn't about faster transfer or even faster charging on ereaders.
Edit:
Some details on USB 3.x
https://en.wikipedia.org/wiki/USB_3.0
An enterprise class NVMe over USB3.x to a high end NVMe PCIe SSD in decent computer is about the only thing that will approach USB 3.x speeds. Irrelevant to ereaders. You don't USB-C connectors. It's possible on USB-A to extended micro-USB connector or extended USB-B connector. A regular micro-USB cable will work, but slower. |
There's already eInk readers that have faster transfer speeds than USB 2.0 allows...
No they don't reach USB 3.0 max speeds but they do go faster than 60MB/s the maximum of USB 2.0. I've seen my Boox readers do over 100+MB/s.
And even a cheap USB 3.0 flash drive these days will easily go over 60MB/s. Ditto things like SD card readers or 4K Webcams. I transferred a 60GB Blu-ray rip to my VR headset in less than a minute recently. Lots of reasons for USB 3.0 speeds beyond SSDs. SSDs are just one thing that easily hit the limit.