Cisco PWR-C2-640WAC 640W Power Supply (DPS-640BB 46c8935 it provides 32GB per module

it provides 32GB per module for high-density server memory configurations

R730xd and Gen12/Gen13 servers

A late-1990s legacy storage component compatible with Ultra2 SCSI host adapters in legacy workstations

Part Number: AEC-7720U

It provides high-IOPS transactional storage in Lenovo Storage V3700 V2 and V3700 V2 XP SFF expansion enclosures requiring 2

Cisco PWR-C2-640WAC 640W Power Supply (DPS-640BB 46c8935 it provides 32GB per moduleThe Cisco PWR C2 640WAC is a genuine 640W AC hot swap power supply module for Cisco Catalyst 3850 and 3650 series switches and Cisco ISR 4000 series routers, providing 640W of certified hot swap redundant power for Cisco enterprise switching and routing platforms. Unlike the Cisco Meraki MA PWR 640WAC variant (for MS 320 350 switches) and the Delta OEM DPS 640BB C base unit, the PWR C2 640WAC is the Cisco Catalyst and ISR branded 640W PSU for Catalyst