This is a 10-pin female header, with extra long legs – great for stacking Arduino shields.
8 Pin Female tall stackable Header Connector socket for Arduino Shield.
Size: 2.1MM Color: White
Brand : Other Type : Electronic Accessories
If you need to connect a battery pack or wired power supply to a board that has a DC jack - this adapter will come in very handy! There is a 2.1mm DC plug on one end, and a screw terminal block on the other. The terminals are labeled with positive/negative assuming a positive-tip configuration (which is the most common)
"NPN transistor kit for DIY electronic projects and experiments A versatile transistor that can be used in a wide range of circuit applications and is ideal for use with Arduino or other microcontrollers"