OWC Express 4M2 USB4 RAID Enclosure – 4-Bay M.2 NVMe SSD, Up to 3200MB/s

Great product, great Flexx service, quick delivery

Flawed but fast

I had the previous version of the 4M2 which I foolishly let go and then found myself needing. This newer version is just as quick.... but no quicker being USB4 vs Thunderbolt 3 it is however quiet thanks to a huge heatsink which is built in to the access panel of the case. There is room for 4 M.2 2280 SSD one on each channel which can handle 1500mbs so in theory you could get 6000mbs I say in theory as I have mine set as 2 separate RAIDs running at 3000mbs each. Yes it can be used in a horizontal format, which, is possibly better as the heatsink is then level and better positioned.