This memory module is compatible with the following Z2 G4 workstation models: 1YZ78EA, 2YW27AV, 2YW30AV, 4QH59EA, 4RW80EA, 4RW82EA, 4RW83EA, 4RW84EA, 4RW85EA, 4RW86EA, 4RW87EA, 4RW89EA, 4RW92EA, 4RW93EA, 4RW94EA, 4RX02EA, 4RX24EA, 4RX25EA, 4RX36EA, 4RX37EA, 4RX38EA, 4RX39EA, 4RX40EA, 4RX41EA, 5JA02EA, 5JA31EA, 5JA32EA, 5JA33EA, 5JA35EA, 5JA36EA, 5JA37EA, 5JA38EA, 5JA51EA, 5UC60EA, 5UC61EA, 5UC72EA, 5UC73EA, 5UD16EA, 5UD20EA, 5UD21EA, 5UD22EA, 6TL16EA, 6TL27EA, 6TL42EA, 6TL43EA, 6TL83EA, 6TL84EA, 6TL85EA, 6TL86EA, 6TL87EA, 6TS88EA, 6TS89EA, 6TS90EA, 6TT37EA, 6TT38EA, 6TT82EA, 6TT97EA, 6TT98EA, 6TW12EA, 6TW13EA, 6TW14EA, 6TW81EA, 6TW82EA, 6TW95EA, 6TW96EA, 6TW97EA, 6TW98EA, 6TW99EA, 6TX00EA, 6TX01EA, 6TX05EA, 6TX07EA, 6TX32EA, 6TX33EA, 6TX36EA, 6TX62EA, 6TX69EA, 6TX70EA, 6TX74EA, 6TX75EA, 6TX76EA, 6TX77EA, 8JJ69EA, 8JJ70EA, 8JJ71EA, 8JJ72EA, 8JJ73EA, 8JJ74EA, 8JJ75EA, 8JJ76EA, 8JJ77EA, 9LM05EA, 9LM06EA, 9LM08EA, 9LM14EA, 9LM15EA, 9LM16EA, 9LM86EA, 9LN00EA, 4RW81EA#ABU, 4RW83ET#ABU, 4RW88EA#ABU, 4RW90EA#ABU, 4RW90ET#ABU, 4RW91EA#ABU, 4RX01EA#ABU, 4RX05EA#ABU, 5JA34EA#ABU, 6TT80EA#ABU, 6TT81EA#ABU, 6TX06EA#ABU, 6TX34EA#ABU, 6TX35EA#ABU, 6TX37EA#ABU, 8JJ68EA#ABU, 9LM07EA#ABU, and 9LM87EA