512MB, PC2-4200, DDR2 533MHz, Non-ECC, Unbuffered, CL4, 200-pin SO-DIMM
HP 512MB DDR2-533, 0.5 GB, DDR2, 533 MHz, 200-pin SO-DIMM
HP 512MB DDR2-533. Component for: Laptop, Internal memory: 0.5 GB, Internal memory type: DDR2, Memory clock speed: 533 MHz, Memory form factor: 200-pin SO-DIMM, CAS latency: 4