Charger for HP Laptop – 18.5V-3.5A // 7.4 mm × 5.0 mm pin size HP Laptop 18.5V 3.5A OUTPUT: 18.5V  3.5A 65W 7.4 mm × 5.0 mm, Pin In Middle . **NO Power cord is included with this adapter. Compatible laptop  Models HP Compaq Business Notebook: NC6300, NC8430, NW8440, NW9440, NX7400, NX8420, NX9420 HP Compaq Notebook: 2230s, 2510p, 2530p, 2710p, 2730p, 6510b, 6515b, 6530b, 6535b, 6710b, 6715b, 6720s, 6720t, 6730b, 6730s, 6735b, 6735s, 6820s, 6830s, 6910p, 6930p, 8510p, 8510w, 8530p, 8530w HP Pavilion: DV4, DV5, DV6, DV7, G3000, G5000, G6000, G7000, NC2400 , NC4200, NC4400, NC6320 , NC6400, nc8430 series … NX7300, NX7400, NX6110, NX6115, NX6310 , NX6315 , NX6320 , NX6325, nx6125, nw8440 series Compaq Presario: CQ40, CQ45, CQ50 HP 2133 Mini-Note PC, Compaq Tablet PC: TC4400 series, HP Pro Book 4720s and other models, HP 2533t Mobile Thin Client, HP EliteBook 6930P, 8730W