Yeah, they're made by 20 different companies. All pretty much the same but some with more connections than others, and some that can hold more than one drive. I Have started to use them in place of tape drives for off site backups. When 1TB drives cost $75-$80 they are lots bigger and cheaper than tape, and faster considering you can afford to eliminate the compression. Those red cases are nice too, theyre by Hudzee.