To: TTY. Need help from TTY a

来源: 于 2004-06-24 03:25:58 [旧帖] [给我悄悄话] 本文已被阅读：次


I have a laptop, its power supply -- AC adaptor just gone. I need to get a replacement. but the one quoted from manufacturer is very expensive. I want to get one from the market. The original AC adaptor's spec is Output 20V, 300mA. I saw two in the market:

1. Output voltage 20Vdc, Max O/P 4.5A

2. Universal Laptop Power Supply -- 19V 4.74A

Are they OK for my laptop? Which one is better?