This I/O adapter supports up to 1 Gbps (V5R1) and 2 Gbps (V5R2) data transmission speeds via the system unit or via the HSL-attached I/O expansion tower to an external device or SAN fabric. This adapter requires an I/O processor. A maximum of 2 adapters can be connected to a single I/O processor.This Magnetic Media Tape Adapter is designed for iSeries servers.