Black Low-Loss SMA Female to BNC Female RF Adapter for Handheld Radios including the Baofeng. 

The BNC (Bayonet Neill–Concelman) connector is a miniature quick connect/disconnect radio frequency connector used for coaxial cable. It features two bayonet lugs on the female connector; mating is fully achieved with a quarter turn of the coupling nut. The connector has a 50 Ω impedance.

SMA (SubMiniature version A) connectors are semi-precision coaxial RF connectors developed in the 1960s as a minimal connector interface for coaxial cable with a screw-type coupling mechanism. The connector has a 50 Ω impedance.

The Low Loss RF Adapter is finished in black chrome and is designed for rugged use.

Also Compatible with the following:

MTX8000, MTX800, MTX8250, MTX8250LS, MTX838, MTX850, MTX850LS etc

XTS 1500, XTS 5000, XTS 3500, XTS 2500, XTS3000 etc

GTX LTR Portable, GTX Privacy Plus Portable etc

HT1000, HT2000, JT1000 etc

MT2000, MTS2000

Baofeng UV-5R UV82 BF-888S GT-3 (not compatible with UV-3R)

Anytone AT-D868UV

Wouxun: KG-UVD-1P, KG-2D, KG-659, KG-669, KG-699, KG-689, KG-679 (not compatible with KG-UV6D, UV8D)