The original notebook power supply Adapter AC 65W, 40T7697 by Lenovo guarantees very good quality. It is compatible with laptop models:

• Lenovo- 3000 C100 (0761)
• Lenovo- 3000 C200 (8922)
• Lenovo- 3000 C200 (NL22)
• Lenovo- 3000 J100 (8253, 8254)
• Lenovo- 3000 J100 (8454, 83005)
• Lenovo- J105 (8259)
• Lenovo- 3000 N100 (0689, 0768)
• Lenovo- 3000 N200 (0687, 0769)
• Lenovo- 3000 V100 (0763)
• Lenovo- 3000 V200 (0764)
• Lenovo- 3000 Y200 (6900) 9449
• ThinkPad Edge E40
• ThinkPad Edge E50
• ThinkPad L L412 (0530)
• ThinkPad L L412 (0553)
• ThinkPad L L412 (0585)
• ThinkPad L L412 (052P)
• ThinkPad L L512 (2550)
• ThinkPad L L512 (2597)
• ThinkPad L L512 (2598)
• ThinkPad L L512 (2599)
• ThinkPad L L512 (4444)
• ThinkPad L L512 (4447)
• ThinkPad T T410 (2516) (2518)
• ThinkPad T T410 (2519)
• ThinkPad T T410 (2522)
• ThinkPad T T410 (2537)
• ThinkPad T T410 (2538)
• ThinkPad T T410 (2539)
• ThinkPad T T41P-T410-Th 10s (2904)
• ThinkPad T T410s (2907)
• ThinkPad T T410s (2912)
• ThinkPad T T410s (2924)
• ThinkPad T T420
• ThinkPad T T420 (4178)
• ThinkPad T420-T410Th 420 (4236)
• ThinkPad T T420 (4237)
• ThinkPad T T420 (4238)
• ThinkPad T T420s (4170)
• ThinkPad T T420s (4171)
• ThinkPad T T420s (4172)
• ThinkPad T T420s (420s)
• ThinkPad W520 (4249)
• ThinkPad W520 (4260)
• ThinkPad W520 (4270)
• ThinkPad W520 (4276)
• ThinkPad W520 (4281)
• ThinkPad W520 (4282)
• ThinkPad X1 (1286)
• ThinkPad X1 (1291)
• ThinkPad X1 (1293)
• ThinkPad X1 (1294)

Power: 65 W