A DB15 cable usually refers to a standard-density 15-position D-Sub assembly with two rows of contacts, more precisely called DA15. Don’t confuse it with the smaller, three-row high-density 15-position connector commonly associated with VGA. For purchasing, the fastest check is to count rows before discussing the pinout.
DB15 vs DA15 Naming
In the original D-Sub shell system, a standard-density 15-position connector uses the A shell and is therefore DA15. The market still widely calls it DB15, so both terms appear in product listings and maintenance documentation.
Use the familiar term for search, but put DA15/two-row 15-position on engineering drawings when you want to remove ambiguity.
Two Rows Are the Critical Identification Feature
A standard-density DA15 uses 15 positions in two rows, typically 8 + 7. Current D-Sub manufacturer documentation distinguishes it from the high-density 15-position E-shell connector, which uses three rows.
If a photo shows three rows of five contacts, you are not looking at the standard two-row DA15 covered by this page.
DB15/DA15 vs HD15/VGA
Both connector families have 15 positions, but they differ mechanically. A two-row DA15 cable will not mate with a three-row high-density 15-position port. The same contact count therefore cannot be used as the purchase specification.
Also avoid assuming every three-row connector carries VGA. Equipment makers can use high-density D-Sub hardware for proprietary signals.
Does DB15 Have a Standard Pinout?
Unlike the strong association between DE9 and common RS232 pinouts, a two-row DA15 is used across different applications and has no universal pinout. The device manual or approved drawing must control the wiring.
For replacement work, continuity-map a verified original cable if the manufacturer documentation is unavailable.
What to Specify for a Custom DB15 Cable
Define two-row DA15 or the exact manufacturer part; male/female contact gender; both cable ends; finished length; wiring table; shield and backshell; mounting hardware; straight or angled exit; labels; and quantity.
If the cable is a panel harness or bare-wire pigtail, also define panel orientation, branch/strip lengths, and conductor identification.
Buyer / Engineer Checklist
- Confirm the exact equipment model and port function.
- Identify connector type, contact count, row layout, and cable-side gender.
- Use an approved pinout, equipment manual, or verified original sample.
- Define DA15 gender, cable length, backshell/strain relief, and any panel or IDC termination details.
- State sample quantity, production quantity, and required electrical inspection.
Ordering Mistakes to Avoid
Ordering ’15-pin D-Sub’ without row count; confusing DA15 with HD15/VGA; or assuming a universal DB15 pinout.
Frequently Asked Questions
Is DB15 the same as VGA?
No. The standard-density DA15 covered here has two rows, while the common VGA connector uses a three-row high-density 15-position format.
Why is it called DB15 if DA15 is more accurate?
DB15 became common market shorthand. DA15 is the more precise shell designation.
Can I order a DB15 cable by pin count only?
No. Confirm rows, gender, hardware, and the equipment-specific pinout.
Need a Custom Cable or Compatibility Review?
For a custom DA15/DB15 cable, send a mating-face photo showing the two-row layout, cable-side gender, equipment pinout, length, shielding/termination details, and quantity. This prevents selecting a 15-position VGA-style connector by mistake.
