the osprey-540 capture cards are 32-bit, 5-volt cards. they are compliant with version 2.2 of the pci hardware specification. the dv option of the osprey-540 is a daughter card. thus the osprey-540 is actually composed of 2 cards. below is a picture of the osprey-540 (actual hardware may differ in minor ways):

system requirements
configuring the video capture driver
installing the card
connecting cables