606020-001 aka 605835-B21
1TB 7.2KRPM HPE Hard Drive SFF (Midline-SAS) ML-SAS.
Used on HP Integrity servers that use 2.5" Enterprise SAS drives (older style with lever and two LED)
What is Midline-SAS?
(Midline SAS) drives have a SAS interface, but head, media, and rotational speed of traditional enterprise-class SATA drives, so they cost less than other SAS drives. When compared to SATA, NL-SAS drives have the following benefits::20