SCSI & VHDCI Connector Cross-Reference: HPCN, CN50, DB50 & High-Density D-Sub
Time:2026-11-09
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SCSI may be old-school, but it refuses to die — industrial equipment, test instruments and legacy systems still run on it, and every one of those systems eventually needs a connector. When the original is branded, discontinued, or quoted at a price that makes your buyer wince, a factory-direct equivalent is the sensible fix.
We build the full SCSI connector family in our Shenzhen plant, and we’ve been doing it long enough to keep the pitch, the shell and the latch details exactly where your legacy board expects them. Here’s the part-number map.
VHDCI — the very high density half-pitch
VHDCI packs 26 or 50 circuits into a tiny 0.8 mm pitch shell. We stock VHDCI 26-pin and VHDCI 50-pin, solder and male-to-female configurations, with zinc alloy shells that survive the rack-and-unrack life.
HPCN — the high pin count standard
HPCN is the 1.27 mm half-pitch connector behind SCSI-2 and SCSI-3. We cover the full range — HPCN 20, 26, 36, 50 and 100 pins — in right-angle DIP and cable styles, with or without latch clips.
CN50 — the classic 50-pin
CN50 is the 50-pin solder connector everyone pictures when someone says “SCSI cable”. Our CN50P straight-solder males drop straight onto existing boards and cables.
DB50 — high-density D-Sub, SCSI’s quiet twin
The 50-pin high-density D-Sub shares a shell with classic D-Sub but packs 50 contacts where a DB25 fits 25. We build DB50P and HPDB50P / HPDB100P in DIP, solder and IDC styles, straight and 75°/90° angled, male and female, in a range of shell finishes.
57 Series — the industrial workhorse
The 57 Series 50-pin male with tinplate housing is a staple of industrial backplanes. We carry it as a straight drop-in for the machines that have been running it for twenty years.
At a glance
| Series | Pins | Pitch | Styles |
|---|---|---|---|
| VHDCI | 26 / 50 | 0.8 mm | Solder, male-to-female |
| HPCN | 20 / 26 / 36 / 50 / 100 | 1.27 mm | Right-angle DIP, cable, latch clip |
| CN50 | 50 | 1.27 mm | Straight solder |
| DB50 / HPDB | 50 / 100 | HD D-Sub | DIP, solder, IDC, 75°/90° |
| 57 Series | 50 | 1.27 mm | Tinplate housing |
Why buy a legacy SCSI connector from us instead of the original? Because the original is often discontinued, always priced like a premium, and usually quoted with a lead time that stalls your maintenance schedule. We keep these in production precisely because industrial customers need them in small batches, fast, without a treasure hunt.
If your exact configuration isn’t on the shelf — a particular latch, a plating change, a custom shell — tell us. We do small-batch custom SCSI runs, which is what a legacy part actually calls for.
Frequently Asked Questions
Are these genuine branded SCSI connectors?
No — they are our own factory-made equivalents, built to the same pitch, shell and footprint as the originals they replace.
Can you match a discontinued part number?
Usually yes. Send us the part number or a photo and measurements, and our engineers will confirm the match or propose the nearest equivalent.
Do you support small-batch orders?
Yes. Legacy and maintenance quantities are exactly what we’re set up for — low MOQ and short lead time.
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