Hello as a personal side hobby, i have recently started constructing form factor computer cases out of wood (plywood, oak, etc) for my personal, mid-range gaming computer. i have gone through two versions so far and overall happy with my achievements-my cpus maintain a cooler temp than they ever have with the same amount of fans and i've reduced the overall size of a micro-atx system by 60%!~. However, i feel i can can reduce the overall size even further if i can figure out a way to change the mounting location of my video card (which happens to be the largest and most cumbersome piece of the puzzle). recently i discovered the existance of riser cards and cables, which appear to be used for special server PCs and bitcoin mining (what will they think of next!?) and it seems that google and ebay is flooded with all the wrong information. My local retailers (canadacomptuers) don't stock anything of the like. NCIX and Newegg (canada) have a very limited selection and overall i feel like i can't find the right amount of information on this whole "thing". i'll leave out MB and GPU listings because they may change in the future, but consider everything new age ie, pci 16 +, 3.0, etc. so, my question: 1. is there an impact on performance from using a riser for a single video card 2. aside from the obvious mounting possibilities, is there a difference between CARDS and CABLES 3. am i safe buying the 10-15 dollar stuff from Ebay, or should i stick to some of the server-specific units which seem to have their own capictors and what not (why would they anyway?) (they are in the 30-40 dollar price range) 4. if i do use a CARD, what is the height of the car that i should be looking at. My current video card measured 3.1mm from the card insert itself to the flush side of the fan case. So i assume at a minimum i would need a 4mm "total" height riser? how are their heights measured? i haven't been able to find the right keywords and would appreciate some help in this regard. i hope i was clear in my post and if i've left out some things i applogize and let me know how to pinpoint what i'm asking.