Pros: USB 3 Realtek card reader. Easy installation and long cables -- all cables other than USB 3 cable attach to the internal hardware using standard SATA or pin header connections.

Cons: NewEgg refuses to acknowledge that this is a "card reader," not a controller. This has no fan control capability. Of course, card readers have regularly had discounts, and this "mistake" ensures that this product does not qualify.

Pros: Same drive cages as used in RSV-L4411 server/rackmount case. Good rear layout, can run off 1 molex connector (provides two for redundant power supplies (i.e., when used in server cases)

Cons: QA/QC needs work. One drive sled came without one of the metal leaf springs that hold the sled against the side of the cage. The sled fortunately works without the missing leaf spring.

Overall Review: Inspect the unit carefully when you get it. The unit appeared fine until I pulled out the fourth sled to finally load a drive into it.