Part No: 90Y3177 - IBM 4GB PC3-12800 DDR3-1600MHz ECC Registered CL11 240-Pin DIMM Dual Rank Memory Module

Capacity: 4GB (1 x 4GB module)
Memory Type: DDR3 SDRAM
Speed: 1600 MHz (PC3-12800)
Form Factor: 240-pin DIMM (standard for servers and desktops)
CAS Latency: CL11 (11 clock cycles for accessing data)
Voltage: 1.5V (typical for DDR3 memory)
Rank: Dual Rank – The memory module has two sets of memory chips (ranks), offering better performance compared to single-rank modules, particularly in systems that support dual-rank configurations.
Error Correction: ECC (Error-Correcting Code) – Provides error detection and correction to ensure data integrity, which is critical in server environments and other mission-critical applications.
Buffered/Registered: Registered (RDIMM) – This type of memory includes a register that helps improve stability and scalability, especially in systems with large memory configurations.