The Voltage ranges from 15, 16, 18, 19, 20, 22 and 24V. Here is a list of what the adapters will fit. Adapters are based on numbers. A: 6.4X4 SUIT OFR FUJITSU 16V 3.36A, FUJITSU 16V 3.75A, FUJITSU 19V 3.16A, SONY 16V 3.75A, SONY 19.5V 6.15A, SONY 19.5V 2.15A, SONY 19.5V 4.7A, SONY 19.5V 5.13A, SONY 19.5V 3A, SONY 19.5V 4.1A, SONY 16V 4A, SAMSUNG 14V 3A B: 5.5X2.5 SUIT FOR LITEON 19V 3.16A, NEC 19V 3.16A, TOSHIBA 19V 3.16A, TOSHIBA 19V 3.42A D: 6.3X3.0 SUIT FOR NEC 15V 4A, TOSHIBA 15V 3A, TOSHIBA 15V 4A, TOSHIBA 15V 5A, TOSHIBA 15V 6A, TOSHIBA 15A 8A E: 4.8X1.7 SUIT FOR HP/COMPAQ 18.5V 3.5A, COMPAQ 18.5V 2.7A, COMPAQ 18.5V 3.8A, DELTA 19V 2.64A, NEC 19V 2.64A, ASUS 19V 2.64A F: 5.5X2.5 SUIT FOR ACER 19V 3.42, COM 19V 3.16A, DELTA 19V 3.42A, DELTA 19V 4.47A, DELTA 19V 4.74A, FUJITSU 19V 4.22A, HP/COM 18.5 1.1A, HP/COM 19V 3.16A, HP/COM 18.5V 4.9A, HP/COM 19V 3.16A, HP/COM 18.5V 4.9A, IBM 16V 3.6A, IBM 16V 3.36A, IBM 16V 4.5A, IBM 19V 4.2A, LITEON 19V 3.95A, LITEON 19V 4.74A, LS 20V 3.25A, GATEWAY 19V 3.16A, GATEWAY 19V 3.68A, GATEWAY 19V 4.74A G: 5.5X3.0 SUIT FOR SAMSUNG 19V 4.74A, SAMSUNG 19V 3.16A, SAMSUNG 19V 4.22A, SAMSUNG 16V 3.75A, SAMSUNG 19V 3.15A H: 3PIN PLUG SUIT FOR DELL 20V 3.5A, DELL 20V 4.5A K: 7.7X7X2.5 SUIT FOR APPLE 24V 1.875A, APPLE 24V 2A HP ONLY: 7.4X5.0 SUIT FOR HP 19V 7.1A/, HP 19V 7.9A, HP 19V 9.5A, HP 18.5V 6.5A, HP 19V 4.74A, HP 18.5V 3.5A