One is an IBM ultrastar model DDYS-T09170. The other a quantum TD91W011
Two removable drive cages to suit the above drives. Presumably, they're hot swappable??
One Tekram DC-390F wide scsi PCI adapter and two 68 pin scsi cables. One has 3 male plugs and is about 1m long. The other has 8 male plugs and is about 2m long.
All these were working together when pulled from the box they were in some time ago.