KVR533D2N4K2/512 - Kingston Technology 512MB Kit (2 X 256MB) DDR2-533MHz PC2-4200 non-ECC Unbuffered CL4 240-Pin DIMM 1.8V Memory

Technical Specs:
- Memory Type: DDR2 SDRAM
- Memory Size: 512MB
- Kit Type: 2 x 256MB
- Memory Speed: 533MHz
- Latency Timings: CL4
- Pin Count: 240-Pin DIMM
- Voltage: 1.8V
- Error Correction Code: Non-ECC
- Buffered/Unbuffered: Unbuffered
- Memory Configuration: Dual Channel
- Form Factor: DIMM
- CAS Latency: 4

Helpful Notes:
- DDR2-533MHz is a relatively slow memory speed by today's standards.
- Non-ECC memory is typically used in consumer-grade computers, while ECC memory is used in servers and workstations.
- Dual channel memory configuration can improve performance by allowing the CPU to access two memory modules simultaneously.