DS-101, DS-103 13 PIN DIN Breakout Board/Prototype Breadboard for Roland GR-33 GR-20 GR-30 VG-88 VG-99 GR-55 GK-2a GK-3, Includes #4 Screw for Mounting Holes

Note that the numbers printed on the board do not match the standard pin numbering for Roland 13-pin jacks. If you wire straight through to another one of these boards, there's no problem. But if you're trying to use one of these on the front panel connector, the mismatch will cause you problems. I damaged an Axon AX-50 guitar interface finding this out. Other than that, the board is fine.More detail: Roland GK pins are numbered like this (looking at the front of the jack, with the tab pointing up):Row 1: 1, 2, 3, 4Row 2: 5, 6, 7, 8Row 3: 9, 10, 11, 12Row 4: 13On this board, the pins are numbered going across the two rows, with row 1 being 1-8, and row 2 being 9-16. The GK pins map to these numbers like so:GK 1->1GK 2->9GK 3->2GK 4->10GK5->3GK6->11GK7->4GK8->12GK9->5GK10->13GK11->6GK12->14GK13->10The seller/manufacturer should add this information to the listing.