#2729 is an IOA that provides your AS/400 (170, 250, 7XX, 6XX, SXX) SCSI attachment capability for external tape devices. The #2729 can attach one of the following tape and optical devices: 3490E E01/E11 1/2-inch Cartridge Tape Subsystem (w/drawn) 3490E F00/F01/F11/F1A 1/2-inch Cartridge Tape Subsystem 3490E C11/C22/C1A/C2A with feature #5040 3494 Tape Library Dataserver 3570 1/2-Inch Cartridge Tape Subsystem 3575 l/2-inch Cartridge Tape Subsystem 3590 1/2-inch Cartridge Tape Subsystem 3995 Optical Storage Subsystem 7208-012 5.0GB 8mm Cartridge Tape Unit 7208-222 7.0GB 8mm Cartridge Tape Unit 7208-232 8mm Dual 5.0GB Cartridge Tape Subsystem 7208-234 8mm Dual 7.0GB Cartridge Tape Subsystem 7208-342 20GB External 8mm Tape Drive 9348-001 1/2-inch Reel Tape Unit - Rack Mount 9348-002 1/2-inch Reel Tape Unit - Table Top 9427-21X 8mm Tape Library: 20 cartridges, 1-2 drives High-speed PCI card slots required: One. 170/250 Prerequisites: #7101/#7102 System Unit Expansion. Maximum: Two. 720 Prerequisites: 2809 or 2824 Maximum: One in the system Unit, 2 in the PCI expansion, 3 in the 5065 640/650/S30/S40 Prerequisites: Storage/PCI Expansion Tower (#5065) 600/620/S10/S20 Prerequisites: 2809/2824 One SCSI PCI slot is required.