73P3842-HY - Hypertec Legacy - DDR2

module - 512 MB - SO-DIMM 200-pin - 533 MHz / PC2-4200 - unbuffered - non-ECC - for ThinkPad R51; IBM ThinkPad R52; T43; X41; Lenovo C100; ThinkPad R51; X41; X41 Tablet; Z60