and High Quality! The plug is used on the power cord. Easy to use. Simple and convenient to install. The P13 4pin Plug is designed for Antminer S21 S19jxp mining machine Power cable and can provide a reliable and stable power connection for your S21 S19jxp mining machine. (Due to different lighting or displays, the actual product may have color difference; different batches may have random colors of components, which cannot be specified and not affect the use) Material: plastic colour: black Package Contents: 5 x P13 Plug kit (Need to assemble by yourself) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.