The HD 5550 Ultimate is a short card. The card overhangs the PCI Express slot by a mere inch. One thing to note about the card is that it is almost a 2-slot design with the second slot taking up the rear of the card instead of the front as on most cards. The card has a heatsink/heatpipe solution that covers about half the front. Two heatpipes lead out to another heatsink and the back heatsink covers about the top quarter of the PCB.
Heat pipe 2
Top of heat pipe
The top of the card has the heatsink for the cooling but no Crossfire bridge. On the mainstream cards like the HD 5550 the ability to do Crossfire is still there but as the cards even two of them are not likely to saturate the PCI Express bandwidth, they communicate to each other over the PCI Express bus. The I/O on the card consists of a VGA output, a Dual-Link DVI output and a HDMI output. Note that to use three monitors a DisplayPort connection is required so two monitors are supported.
VGA and HDMI