Hypertec Legacy - SDRAM

module - 256 MB - SO-DIMM 144-pin - 100 MHz / PC100 - 3.3 V - unbuffered - non-ECC - for IBM ThinkPad 390; 600; A20; A21; A22; T20; T21; T22; T23; X20; X21; X22; X23; X24