All controllers have been disassembled, mostly cleaned, reassembled, and tested for 100% functionality. "Most cleaned" because I didn't go over everything with a fine toothbrush so there may be some residual dirt I missed. And yes, Super Famicom (SFC) and Super Nintendo (SNES) controllers are compatible with all console models, the only difference is cord length and button colours.
Some controllers have uniform whitening due to me using too high a temperature in the Retrobite process so I'm selling those at a discount. If you prefer the whitened look, you can get controllers for cheap!
Please review the cosmetic condition descriptions below:
Cosmetic A = Relatively few scratches and scuffs. Note this does not mean "perfect"; these are 30+ year old controllers.
Cosmetic B = Relatively few scratches or scuffs, or a tiny chip/ding. Potentially a small degree of uniform off coloured shell. If I didn't say anything you'd probably think it was normal.
Cosmetic C = Moderate scratches, scuffs, and/or tiny dings. Potentially a significant degree of uniform whitening, slightly off coloured shoulder buttons, or non-uniform button face (the grey shade around the 4 buttons).
Cosmetic D = Heavily yellowed from age and not refurbished. There may be dirt you'll need to clean off and there may be more scratches and dings. Still 100% functional guaranteed.
5.9ft = SFC cables are originally 3ft so modified a batch of them with 5.9ft replacement cables. The shell, buttons, circuit board, and rubber pads are still all 100% OEM, the only change is the extended cable plugged into the circuit board much like an OEM cable would be.
Shipping cost is always the same even if you buy 1 or 100.
Please ask if you have any questions.