its Adapter female socket. can be compatible with any normal dc adapter with 2 mm jack.
here 2 pins for negative and 1 pin for positive.
Nut also provided with connector. Select the qty you need from above options.
Package Include -
5 pcs female connector
Dc Adapter Female Socket, Connector pack of 5
Product Dimension-
L X W X H - 14 x 14 x 19mm
Weight - 14 grams
Country Of Origin : India