Question re: mini-dock model numbers: 62p4551 vs 287810u ??

[texasdiver]

Hi guys:

Been looking for a thinkpad mini-dock to use with my T42p and I have found ebay listings for two different model numbers of IBM mini-docks:

Most listings are for model: 287810U which is the model number shown on the IBM web site

However I've seen a few listings for an IBM mini-dock with model number 62P4551 on ebay and at various other online computer stores.

Anyone know if these are the same model or what is different between the two? They look the same but I can't confirm that. A search on IBM's web site for 62P4551 brings up no results which I find odd if it is a legitimate IBM part number.

Thanks

[sktn77a]

If it has 4 USB 2.0 ports and a 4 pin power supply plug (I believe the same one as the G series) then it's probably the same.