50 Ohm BNC connectors are used with 50 Ohm cables. 75 Ohm connectors are used with 75 Ohm cables.
50-ohm cables/connectors work well with old analog video formats. If you are looking for high-quality video output, 50 Ohm will not give you a high-quality level.
75-ohm cables/connectors are made for high-quality digital video and are able to scale their output depending on the input received.
 |  |  |  |  |  | |
|---|---|---|---|---|---|---|
| Blackmagic BNC Cable, DIN 1.0/2.3 to BNC Male Cable | 3G/6G SDI Cable 75 Ohm BNC Cable Thin & Short | 3G/6G/12G SDI BNC Cable | BNC Cable 3G/HD SDI Cable Coil Cable | BNC Male to Female Extension Coaxial Cable 3G/HD SDI Cable | 3G/HD SDI Cable BNC Cable | |
| | | | | | | |
| Customer Reviews | 15 | 42 | 407 | 83 | 16 | 277 |
| Cable type | Belden 1855A | Belden 1855A | Belden 1694A | 3C-2V A/V Cable | RG179 | RG179 |
 |  |  |  |  |  | |
|---|---|---|---|---|---|---|
| long sdi cable + extension cord reel | 6G 12G SDI Cable 4K thin and short | BNC Splitter Cable 75Ohm | Short hd-sdi 3g sdi cable thin right angle | BNC Adapter 75 Ohm SDI Connector | Flexible and Thin HD-SDI 3G SDI Cable black | |
| | | | | | | |
| Customer Reviews | 3 | 7 | 6 | 277 | 22 | — |
| Cable type | Belden 1694A | Belden 4855R | RG179 | RG179 | adapter | RG179 black |
| Applications | for SDI Vedio Frame Grabber, SDI Video Audio Broadcast Router, SDI Switcher Hub, SDI Frame Synchronizer; | for Surveillance DVR Recorder, medical monitor, SDI HDMI Converter, Blackmagic Design Video Assist | forcameres, CCTV monitor, video splitter, SDI converter, SDI acquisition, timecode generator | for HD switcher, sanctuary cameras, video mixer, HDMI to SDI Converter, monitor, TV antenna baluns etc. | for 4K 1080P Vedio 3G-SDI SDI Video Equipment, CCTV, DVR, Cameras | for VCR, camera, CCTV monitor, sdi converter, video splitter, oscilloscopes, security camera cable |
