Total Micro 64GB DDR4 SDRAM Memory Module - For Server - 64 GB (1 x 64 GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - CL22 - 1.20 V - ECC - Registered - 288-pin - LRDIMM UCS-MR-X64G4RS-H-TM

Total Micro 64GB DDR4 SDRAM Memory Module - For Server - 64 GB (1 x 64 GB) - DDR4-2666/PC4-21300 DDR4 SDRAM - CL22 - 1.20 V - ECC - Registered - 288-pin - LRDIMM
Technical Specifications:
Memory Size: 64 GB
Memory Technology: DDR4 SDRAM
Memory Voltage: 1.20 V
Number of Modules: 1 x 64GB
Memory Speed: 2666 MHz
Memory Standard: DDR4-2666/PC4-21300
Error Checking: ECC
Signal Processing: Registered
CAS Latency: CL22
Device Supported: Server
Number of Pins: 288-pin
Form Factor: LRDIMM
Compatibility: Cisco Servers:

UCS B200 M5, UCS C220 M5, UCS C240 M5