Dell PowerEdge 9338D is a hot-plug redundant power supply unit for server use. Its 495W rating identifies the output class, while the 100–240V, 50/60Hz input specification describes the supported mains range.
The unit is listed as 80+ Platinum and supports Extended Power Performance (EPP). Its stated form factor length is 86mm, a useful fit detail for matching the supply to its chassis.
The distributor lists the Dell PowerEdge R630 as a compatible system.