Kingston KVR533D2N4/1G D2-533 1G/128x64 Memory
Specifications:

Mfr Part Number: KVR533D2N4/1G
Type: DDR2 (SDRAM-DDR2, 1.8V, CL4)
Capactity: 1 GB
Speed: PC4200 533MHz
Size & bit: 128M X 64
Pins: 240pin
ECC: No
Registered: No