We've got 2 types of adapters, the beige adapters are 2 1/4 inches long, the orange are 5/8 inches long. All are dusty from sitting in inventory.
Four beige adapters have thumbscrews on both sides. I've got 2 more where the thumbscrews were removed from the 25-pin side, and 1 additional adapter that has nuts instead of thumbscrews on the 9-pin side. Contact me directly if you prefer to have one of these 3 different beige adapters.
All of the orange adapters have phillips head screws on the 25-pin side and nuts on the 9-pin side.