Base Specification:
541DX 5400RPM 20GB ULTRA ATA/100 HDD, 2B020H1111111 (K,M,B,A), 11B,11A,11C,WAK21R90
541DX 5400RPM 20GB ULTRA ATA/100 HDD, 2B020H1111111 (K,M,B,A), 11B,11A,11C,WAK21R90541DX 5400RPM 20GB ULTRA ATA/100 HDD, 2B020H1111111 (K,M,B,A), 11B,11A,11C,WAK21R90
541DX 5400RPM 20GB ULTRA ATA/100 HDD, 2B020H1111111 (K,M,B,A), 11B,11A,11C,WAK21R90