
Ideal when the USB 3A ports are too close together to allow the use of two adjacent USB devices. The manufacturer implies that these extenders can sync up to the maximum speed of USB 3. I have no way of verifying this. The max speed I've had for a short time is 200MB/s for large files, but I can't really blame those cables for that as the transfer speed is as slow as the slowest element in the cycle. My laptop's USB port may be limiting the specified transfer rate. They are durable.