This is an original COMPAQ Auto Adapter New Old Stock. Will work on many brands of Laptop Computers.    (Sealed in original Clear Retail Clamshell).  Clamshell is split at the top but is still sealed. VERY clean. Kept in a dark climate controlled room for years.  

Specs are:
Model CO 1107-0108
Input: 11-16 VDC  8A max.
Output: 18.6V - 2.8A

I'm practically giving this away as I have no use for it.  Calculated shipping so the closer you are to me here in CT the better the mailing cost.     Shipping and Handling on this item will be boxed USPS mail.  I pack well. Boxed weight over 1 Lbs.  From SMOKE/PET free home. Thanks for looking.