I think this is about as small as it gets, boys
~2" tall. Features: SCSISD, short SCSI cable, angled PCI adapter, caseless cart.
Cable length between connectors is 10", connectors on opposite sides, keys facing inward. If making your own, you actually need more than 10" because each connector consumes about 0.5" after the fold-over retainer clips. The retainer clips will "roll" the connectors to the other side of the cable, so keep that in mind when planning out where you want the keys to end up. I managed to rebuild an original cable, but I really don't think they were intended to be rebuilt (pins can pop out of the connector and plastic clips can break off), so probably best to just order new 50 Pin IDC parts (Digikey, Mouser, etc.).
The 1U PCI riser card style I used is sometimes called "inward" or "reverse" angle, and I believe is the less popular style (most popular style having the connector on the other side). The one I got was a "Star Empery PT191R" from here: https://www.ebay.com/itm/331596048584
The SCSISD is version 5.0 and I'm using self-adhesive nylon standoffs that are really too short so I ended up stacking up double-sided foam tape to mount them. I have some HC-13 standoffs on order from China, but I'm not waiting a month to post a photo
I am using CPS3 board revision xyz-3, which has lots of free space due to Capcom doing away with the motherboard's security battery feature. If you have board revision xyz-2, you can still do something similar, but may need taller standoffs for the SCSISD and likely a different cable length, depending on where you mount it.
-ud
~2" tall. Features: SCSISD, short SCSI cable, angled PCI adapter, caseless cart.
Cable length between connectors is 10", connectors on opposite sides, keys facing inward. If making your own, you actually need more than 10" because each connector consumes about 0.5" after the fold-over retainer clips. The retainer clips will "roll" the connectors to the other side of the cable, so keep that in mind when planning out where you want the keys to end up. I managed to rebuild an original cable, but I really don't think they were intended to be rebuilt (pins can pop out of the connector and plastic clips can break off), so probably best to just order new 50 Pin IDC parts (Digikey, Mouser, etc.).
The 1U PCI riser card style I used is sometimes called "inward" or "reverse" angle, and I believe is the less popular style (most popular style having the connector on the other side). The one I got was a "Star Empery PT191R" from here: https://www.ebay.com/itm/331596048584
The SCSISD is version 5.0 and I'm using self-adhesive nylon standoffs that are really too short so I ended up stacking up double-sided foam tape to mount them. I have some HC-13 standoffs on order from China, but I'm not waiting a month to post a photo
I am using CPS3 board revision xyz-3, which has lots of free space due to Capcom doing away with the motherboard's security battery feature. If you have board revision xyz-2, you can still do something similar, but may need taller standoffs for the SCSISD and likely a different cable length, depending on where you mount it.
-ud