IMPORTANT NOTE: Low-Stock Item. Up to 3 -4 week lead time. 140W Redundant Power Supply Unit Redundant Power Supply designed for use with selected D-Link Switches Supports DGS-3324SR, DGS-3324SRi, DXS-3326GSR, DXS-3350SR, DGS-3426, DGS-3427 & DGS-3450 Standalone or Mount in DPS-800/900 RPS Chassis for Racmmont Installation Optional 1-Year On-Site Maintenance available (Australia only)