Kingston KVR533D2N4/256 D2-533 256M/32x64 Original Memory
Specifications:

Mfr Part Number: KVR533D2N4/256
Type: DDR2
Capacity: 256 MB
Speed: PC4200 533MHz
Size & Bit: 32M x 64
Pins: 240pin
ECC: No
Registered: No
Chip: Kingston
CL4
Warranty: Lifetime warranty