Part No: 49Y1558 - IBM 4GB(1X4GB)1600MHz PC3-12800 240-Pin CL11 1.5V DDR3 SDRAM ECC Single Rank X4 Registered RDIMM IBM Memory for SYSTE

Capacity: 4GB (Single 4GB Module)
Type: DDR3 SDRAM (Synchronous Dynamic Random Access Memory)
Speed: 1600 MHz (PC3-12800)
Form Factor: 240-Pin RDIMM (Registered Dual Inline Memory Module)
Rank: Single Rank (single set of memory chips)
Data Width: X4 (4-bit wide data bus for each chip)
Voltage: 1.5V (standard voltage for DDR3)
CAS Latency: CL11 (latency timing)
ECC: Error-Correcting Code (ECC) for enhanced data integrity and error correction
Registered: RDIMM (Registered DIMM) for better stability, often used in servers or workstations
Usage: Designed for use in systems that require stable, error-corrected memory, such as servers and high-performance workstations