Antrader 20 Sets 2.54mm Pitch Connector FC-20 Pin Straight IDC Box Headers Connector Box Headers Female Connector

Good quality extenders, especially for the price considering it comes as a pack of 10. These are great for general GPIO work with the Raspberry Pi when you already know the pin layout or are working from a reference. The connectors fit snugly on the header, and the spacing is accurate, so they’re reliable for prototyping and project builds. The construction is solid and the connectors are tight without being difficult to remove, which is ideal for regular use. They’re useful for setting up multiple boards or projects without needing to move a single extender around. Overall, this is a solid value pack for anyone doing frequent GPIO work. It’s a basic tool, but having extras on hand makes it easier to stay organized and keep projects moving.

These work well and are a good value.

They're just standard 40 pin connectors with the normal key slots and ridge. I pulled a few pins with pliers to comply with IDE/PATA weirdness, which worked fine but does require some force (they're not glued or heat-welded in). These are made from cheap feeling plastic, but that's normal for these kinds of connectors. The only problem is that they come partially clipped together (like the image), and mine shipped in a bag, so 2/10 of them were fully clipped together when delivered. You can pry them apart, but the plastic is weakened in the process, so I just called them a loss.

Fitt perfectly

They look just like the "technician" ordered! I haven't had a chance to use them, but they do look serviceable and should work perfectly for my needs.