If you want to connect multiple external components, you can use a Female header block to do so. Unlike the male version, this block features a single connector for each pin, making it much easier to attach/detach external components. The female header block is usually made of plastic and comes in a variety of sizes. You can find many different sizes on eBay. Just make sure to select one that matches the length of your device.
The male and female versions have identical pin placements and screw terminals. The difference is in the pin configuration. Standard 0.1" headers have two rows of connectors, while machine pin headers are divided into smaller sections. The male and female parts are soldered into place, depending on the requirements. However, it's important to note that not all connectors will mate with a female machine-pin board. If you're not sure which one to use, it's best to buy a machine-pin version.
Another type of header block is the Female adapter board. This is a connector with a screw terminal on one side, and 2 rows of terminals on the other. If you're using a Single-sided stripboard, it would be difficult to solder, so this is not a good choice. This version is more fiddly to use, so it's recommended for use with servo outputs.
Depending on the type of connector you need, you may want to choose a Female machine pin header. These connectors have a better joint and longer life, but they're also more expensive. A Female machine-pin header is designed to snap apart into smaller parts. Alternatively, a Female header strip is made from plastic. Both are soldered into place depending on the requirements. If you're using a Single-sided stripboard, you'll need to be extremely careful and practice your soldering skills.
A female header strip has screw terminals on one side. The other side has a gap between two rows. You can solder the plugs on either side of the strip. The simplest way to connect two male and female strips is to use a single-sided machine pin connector. This is not a good solution, since you need to choose one with a screw terminal on the other. Depending on your needs, a single-sided stripboard will require finer-grained work.
Adapter boards are not as versatile as the female header block. It is a simple and convenient way to connect two male and female boards, but the screws are not as easy to solder in the female header block. In fact, it's a good idea to use a single-sided stripboard if you can make the connections. If you're working on a single-sided PCB, you can use the Female header block.