Specifications:
Plug Size: 5.5*2.1mm(please make sure to choose the right size you need)
Plug polarity: Inner Pin is "+"(Red), outter pin is "-"(Black).
Current limitation: less than 3A (12V).
Power limitation: less than 28w.
Total length: 28cm (please allow 1-2cm deviation).
Quality level: A

What's included:
10 Pcs DC cable

If there is any questions, just contact us, we will alway be here for you.