
Use these cables to interconnect equipment which utilizes 78-pin DSUB connectors. All 78 pins are extended, and the wiring is straight-through (pin 1 to pin 1, 2 to 2, ...) including a shield connection between the shells. The wire gauge is 28AWG. These attractive cables feature 78-pin DSUB connectors on each end, overmolded ends with strain reliefs, and a shielded cable. On the V2 series of cables, each end is also labeled with our part number and length on a tubular label around the wire. These cables are compatible with Winford Engineering's 78-pin DSUB breakout boards.
All cable ends have thumbscrews installed.
On the V1 series, the female cable ends also come with "coupler nuts" screwed onto the thumbscrews (see photos). The coupler nuts accept the threads of a mating male cable's thumbscrews when daisy-chaining one cable to another. In other words, the thumbscrews on a male connector can thread into the coupler nuts on the female end, physically securing the cables together. Note that the coupler nuts can be removed from the female connectors if desired, thus leaving standard thumbscrews.
On the V2 series, coupler nuts are not included on either end; just standard thumbscrews. This is typical when making connections between two pieces of equipment (instead of daisy-chaining onto the end of a cable). We will soon be offering extra-long jackscrews as an accessory that can be purchased separately if daisy-chaining cables is desired. The thumbscrews would be removed and the long jackscrews installed in their place. Compared to the V1 approach, this provides a more secure attachment, with a deeper female thread available for the mating cable's thumbscrews.

Click image to enlarge.
Click image to enlarge.The V2 (EXT78HDxV2-x) cables offer a few different features compared to the V1 (EXT78HDxV1-x) series. We will be discontinuing the V1 series.
| V1 EXT78HDxV1 |
V2 EXT78HDxV2 |
|
|---|---|---|
| AWG (no change) |
28 | 28 |
| Labeled Ends | None | Part# & Length |
| Male-end Hardware* (no change) |
#4-40 Thumbscrews | #4-40 Thumbscrews |
| Female-end Hardware* | #4-40 Thumbscrews & coupler nuts | #4-40 Thumbscrews |
| Internal Wire Color Code | Not Guaranteed | Documented |
| Shielding | Foil | Foil and Copper Braid |
| Flexibility | Somewhat stiff | More flexible |
| Lifecycle | To be discontinued | Active |
*Note regarding connector hardware: See the section Cable Connector Hardware above for a more detailed explanation of the hardware difference.
Pricing and Ordering
| Product # | Description | 1+ | 10+ | RoHS | Buy Now |
|---|---|---|---|---|---|
V2 Series, Male-Female: |
|||||
| EXT78HDV2-2.5 | DB78HD Extension Cable, Male-Female, 2.5Ft | $45.53 | $42.42 | Yes | |
| EXT78HDV2-5 | DB78HD Extension Cable, Male-Female, 5Ft | $50.51 | $47.06 | Yes | |
| EXT78HDV2-10 | DB78HD Extension Cable, Male-Female, 10Ft | $66.09 | $61.56 | Yes | |
V2 Series, Male-Male: |
|||||
| EXT78HDMV2-2.5 | DB78HD Extension Cable, Male-Male, 2.5Ft | $45.53 | $42.42 | Yes | |
| EXT78HDMV2-5 | DB78HD Extension Cable, Male-Male, 5Ft | $50.51 | $47.06 | Yes | |
| EXT78HDMV2-10 | DB78HD Extension Cable, Male-Male, 10Ft | $66.09 | $61.56 | Yes | |
V1 Series, Male-Female: |
|||||
| EXT78HDV1-2.5 | DB78HD Extension Cable, Male-Female, 2.5Ft | $45.53 | $42.42 | Yes | |
| EXT78HDV1-5 | DB78HD Extension Cable, Male-Female, 5Ft | $50.51 | $47.06 | Yes | |
| EXT78HDV1-10 | DB78HD Extension Cable, Male-Female, 10Ft | $66.09 | $61.56 | Yes | |
V1 Series, Male-Male: |
|||||
| EXT78HDMV1-2.5 | DB78HD Extension Cable, Male-Male, 2.5Ft | $45.53 | $42.42 | Yes | |
| EXT78HDMV1-5 | DB78HD Extension Cable, Male-Male, 5Ft | $50.51 | $47.06 | Yes | |
| EXT78HDMV1-10 | DB78HD Extension Cable, Male-Male, 10Ft | $66.09 | $61.56 | Yes | |
| Quantity | Price |
|---|---|
| 1+ | $45.53 |
| 10+ | $42.42 |
| Quantity | Price |
|---|---|
| 1+ | $50.51 |
| 10+ | $47.06 |
| Quantity | Price |
|---|---|
| 1+ | $66.09 |
| 10+ | $61.56 |
| Quantity | Price |
|---|---|
| 1+ | $45.53 |
| 10+ | $42.42 |
| Quantity | Price |
|---|---|
| 1+ | $50.51 |
| 10+ | $47.06 |
| Quantity | Price |
|---|---|
| 1+ | $66.09 |
| 10+ | $61.56 |
| Quantity | Price |
|---|---|
| 1+ | $45.53 |
| 10+ | $42.42 |
| Quantity | Price |
|---|---|
| 1+ | $50.51 |
| 10+ | $47.06 |
| Quantity | Price |
|---|---|
| 1+ | $66.09 |
| 10+ | $61.56 |
| Quantity | Price |
|---|---|
| 1+ | $45.53 |
| 10+ | $42.42 |
| Quantity | Price |
|---|---|
| 1+ | $50.51 |
| 10+ | $47.06 |
| Quantity | Price |
|---|---|
| 1+ | $66.09 |
| 10+ | $61.56 |
All of the above items are normally stocked. Please call us if you need to verify availability for a specific quantity, or for pricing at higher quantities. Please visit our ordering page for our ordering policies and a list of ordering methods.