Part No: 73P2686 - IBM 512MB PC3200 DDR-400MHz non-ECC Unbuffered CL3 184-Pin DIMM Memory Module

Capacity: 512MB (half a gigabyte)
Memory Type: DDR SDRAM (Double Data Rate Synchronous Dynamic Random Access Memory)
Speed: 400 MHz (PC3200 standard) – This indicates that the memory runs at a speed of 400 MHz, offering a solid bandwidth for many desktop applications.
Form Factor: 184-pin DIMM (Dual Inline Memory Module) – The standard form factor for desktop computers, compatible with a wide range of systems.
CAS Latency: CL3 – This indicates that the module has a CAS (Column Access Strobe) latency of 3 clock cycles, which is a standard latency for DDR-400 memory.
Error Correction: Non-ECC – This module does not feature ECC (Error-Correcting Code), making it suitable for consumer-grade applications where data integrity features like error correction are not critical.
Buffered/Unbuffered: Unbuffered – This means the memory module does not have a register to help with error correction or stability when using large amounts of RAM. Unbuffered memory is typically faster but may be less stable for high-density memory configurations.