I used this connector for a detachable cable mod on my DT770s, mainly because the nut screws on from the outside and it doesn’t take up much space inside the cup. Unfortunately, it’s just a bit too large on the inside, so the driver can’t sit completely flush once it’s installed. I used a Dremel to shave down some of the metal on the sides, which helped, but it still doesn’t fit perfectly. Aside from that, the connector itself is excellent quality and very easy to solder.