Based on the 2.1mm Jumbo power connector, this one is more or less the same, but has a right-angled cable exit. This makes it potentially neater in some situations. From the other part: When making up 2.1mm power connectors, I've always found it's really hard to fit the cable into the plastic cover (even if you remember to thread it onto the cable before you get the soldering iron out!). This part is a small case that fits over a 2.1mm power connector, but can house a really big cable (the cable in the pictures has an overal size of 4x8mm). In this example, we've soldered the cable to the tags on the connector and applied a bit of insulating tape. This part requires a 2.1mm power connector, and two short 3mm self tapping screws (mine happen to be 3x13mm). You don't need the screw-on plastic cover that comes with the connector.