Been looking for a 4+ multi-bay DAS enclosure, the majority of which are well over £100, then I stumbled upon this price at MicroDirect for the 4 bay Edgestore.
Looking elsewhere this seems to have got some good reviews, so I ordered 2 of them as this was much cheaper than buying an 8 bay version!
* Supplied with 2-port eSATA PCIe card and 1 x eSata cable
* RAID levels 0, 1, 5 & 10 & JBOD
* Removable Hard Drive Trays
* Supports 4 SATA-300 drives