yeah, it could well be, and ive since seen theres a 'Club 3D' branded one for around the same price, and they're saying 45w, which makes sense as thats what other 7750's consume.
edit- what makes me question if its single or double is the bracket looks like a double, and the heatsink does stand out a fair bit, nothing like a desktop double shroud, but outside the boundaries of a single slot, which means it may be pressed against the case assuming it fits to begin with. However that Club 3D version looks much narrower and ive no doubt (helped by their photos) that it'd fit perfectly well.
edit2

having a better look, i guess its just perspective and seeing a low profile bracket on there making it look like a full size card and throwing the perspective a little. Its probably identical dimensions.
Its a 2nd system, running WHS2011, used mainly as a HTPC because the desktop system that sits next to it runs dual monitors, and connecting the TV above the monitors to that system would require a stupidly priced cable (around the price i paid for the server, or this 7750). Its also a server for my backups, media & general storage, and a test server for web development.
I have the opportunity to switch out the GF210 and replace it with a 5450/6450 for a tenner, and ideally i'd have preferred to have gone with a 7450 or similar for around the same sort of price, £25-35ish, or more if there was a nice performance bump.
I do like to mine bitcoin too, and thats where the HD7000s have the advantage over past series cards. Not only is there a better processing rate, meaning a better $ return, but it'd let me put the desktop machine to mining and let me switch to the server (HTPC/server) if i fancy jumping on a game capable of getting half-decent performance.
At £100 its not great purely for its mining power, but it might let me play stuff i'd currently have to play on the desktop pc, obviously current games i cant, but older stuff or low demand steam games would be fine and it'll free up the desktop for mining.
However... i was expecting similar but priced around £35, not £100
