This is a USB programming cable with which you can connect your radio and PC to read and write frequency. . USB programming cable for , super stable and efficient. Connect directly to PC or laptop USB port. No RIB(Radio interface box) required. Notice: Before Purchasing, please make sure it fits your ceiver. There's No Programming Software included! Compatible with the following radio models: Replacement Part No: HKN6184 HKN6184A HKN6184B HKN6184C Compatible with Mobile Radio Series: DM3400 DM3401 DM3600 DM3601 DM4400 DM4401 DM4600 DM4601 MTM5400 DGM4100 DGM4100+ DGM6100 DGM6100+ XiR M8220 XiR M8228 XiR M8260 XiR M8268 XiR M8620 XiR M8628 XiR M8660 XiR M8668 XPR4300 XPR4350 XPR4380 XPR4500 XPR4550 XPR4580 XPR5350 XPR5550 APX-4500 APX-6500 APX-7500 XTL5000 XTL2500 XTL1500 PM1500 XPR-4300 XPR-4350 XPR-4500 XPR-4550 -4100 -4100+ -6100 -6100+ Notice: Before Purchasing, please make sure it fits your ceiver. Color: Black Material: plastic Package Contents: 1 * Programming Cable 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.