Dell PV22xS U160 SCSI ZEMM controller module 2U597 3U183 – Used Pull
The Dell 2U597 3U183 is a replacement or add on EMM module for the Dell PowerVault storage arrays.
Uses the technology provided by the Ultra2 multimode SCSI bus expander chip
Provides SCSI cable support for longer cables (up to 20 meters)
Supports cluster operation
Supports the PowerVault 20xS storage system feature set
Here is a list of compatible Dell storage enclosures: