Works well but can get hot with drives under load. Have it connected to 3.1 port on PC via USB-C extension cable and USB-C to USB 3.1-A adapter, getting close to SATA III speeds with NVME m.2 external drive. A bit pricey, though, and needs rubber feet for bottom of unit to keep from slipping on desk. Nice and compact. Might work even better if connected directly to USB-C, which I cannot do, unfortunately.