Maxbhi offers a Charging Connector for Samsung B310 part. It is described as “perfect replacement for the original Charging Connector,” and “precision machining fits the cell phone perfectly.”
Abhay Technicals lists a “Samsung B310 Charging Conector (connector)” at a very low price, claiming both original and non-original types with A+ quality.
GSM‑Forsage has a “Charge connector Samsung … J120” listing under model compatibility (for J120, S5282, etc.) with code CB‑00002402.
On a listing through a site “m.akinfotools”, there is “SAM B310 / J120 OG CC” part described as featuring a micro USB charging connector.
