Recommended Efficient External AC-DC Adapter (100W - 120W)?

[onlinespending]

I'm looking for a 12V - 19V high efficiency (>89%) external power brick that can supply 100 - 120W. I have the GS120A12-R7B, but that is 87.5% efficient and more importantly uses a 4-pin mini-din type connector, as opposed to the 2.5mmx5.5mm barrel type connector that I need. The GS90A19-P1M looks like a great candidate (it's 89% efficient at 19V) and has the right connector, but has low output current for my needs (sadly, my computer idles well below 90W, but because I cannot enable staggered spin-up the initial current demand on bootup is quite high when all hard drives are powered up). Plus it's hard to find and expensive.

Any suggestions? Thanks!

[Cistron]

Search the forum for Dell DA-2. You will likely have to solder a different connector onto the leads though.