Lost power adapter for EZXS55W, any of these work?

[TheGlow]

Hello, I have an EZXS55W switch we found at work, but it has no power adapter.
I have 2 extra adaptors here that do fit, however I know that is very risky business and not a sign it will work.

The switch needs DC 7.5V 700mA

Spares are a Plantronics 9V 300mA
logitech 5.25V 300mA.

From my understanding amps can be over the requested, but both fall far short of 700mA.

 

[Emerald]

neither one will work based on mA.

the 9V might even fry the switch

http://www.ebay.com/sch/i.html?_nkw=EZXS55W+power+supply&_sacat=0&_odkw=EZXS55W&_osacat=0&_from=R40

 

[TheGlow]

Nod, that's where I can't remember when you can and can't use certain stuff.
I learned my lesson when the wife mixed up adapters and put one in the bag i had with an external ide hdd enclosure.
Plugged it in, turned it on, Phhhht. no power light? hey, whats that smell?

 

[TheGlow]

Best answer selected by theglow.