External Cables & Adapters (Macintosh)

Modem Cable, Serial Min-din 8 to DB25

External Modem Cable

Additional DescriptionMore Details

External Modem Cable, Mini-din 8 to DB25 is used on all Macs from the Plus through the Beige G3. This cable is also used on the Apple IIGS and IIc Plus.

All are 6′. Available New and Used.

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Power Cable

Gray or Black

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Regular generic computer power cable. All are approx 5-7′ long. All are 3 prong – they have a ground pin for U.S. outlets. Cables are gray or black in color.

A cable is free by request with any computer, monitor, external hard drive or printer purchase if you need one. You may already have a pile of them, and they do add to the shipping weight.

Apple branded power cables are very rare, but one turns up now and then. I’ll add then as I come across them.

Angled power cables and hooded power cables (usually used to power a monitor from the computer) have separate listings.

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Printer Cable ~ Mini-DIN 8 M/M (Serial)

8 pin round printer cable – used on Apple II and Macintosh computers

Additional DescriptionMore Details

This cable is used to connect your Apple IIc+, Apple IIGS or Macintosh to a serial device – usually a printer.

Works with the following computers:

  • Macintosh Plus all the way to the beige G3’s.
  • Apple IIGS
  • Apple IIc plus
  • Mini-Din 8 pin male to Mini-Din 8 pin male

Single cable pictured is Apple # 590-0552-A, 6′ long

Note that the 3′ cables are about 32″ and have an EMI/RFI filter near each end. No other serial cables have filters.

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SCSI Cable, External – SCSI 1, Fast SCSI (All)

DB25 and Centronics 50

Additional DescriptionMore Details

This page contains the most common SCSI cables that will plug into the built in 25 pin port on your Macintosh (Plus through Beige G3) or Apple II (IIe & IIGS with a SCSI Card). The connector for this port is referred to as DB25, and the port is female – it needs a cable with pins sticking out (male).

These SCSI cables are used to connect to scanners, external CD Drives and external hard drives – including Zip, Jaz, Orb and others.

Select below: All are used cables except some CN50-CN50.

A) DB25 – DB25 M/M Cable: Most Scanners, Zip Drives and some of the early external hard drive manufacturers such as LaCie used the 25 pin ports on their devices. Also used for chaining 2 or more drives together.

B) DB25 – CN50 M/M Cable: Most external CD Drives and hard drives have the CN50 (Centronics) ports.

C) CN50 – CN50 M/M Cable. Centronics 50. Used to chain 2 or more drives together.
D) CN50 – CN50 M/M Cable – NEW!

E) CN50 M – CN50 F Cable. Centronics 50 Extension cable

While all can range from 18” to 6’ , it is easiest for me to list them as 3’ and under (most are less than 2′), and 4-6’. From a variety of manufactures, colors can be white, gray or beige.

If you are in need of cables with different connectors:

PowerBook SCSI Cables are found here.

SCSI-2 and SCSI-3 Cables are found here.

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SCSI Cable, External SCSI-2 and SCSI-3

HD50 and HD68 pin

Additional DescriptionMore Details

Internal SCSI expansion cards and adapters let you add SCSI 2 or SCSI 3 drives to your Mac – both internal and external. These are called many names, but I’ll go with the shortest – HD50 or HD68. Also can be MD50, Micro 50, Mini D50 or MD68, Micro 68, Mini D68, Ultrawide, Ultra2, LVD.

SCSI-2 devices have the 50 pin HD50 ports (approx 1-3/8” wide). Most, if not all, use a latch mechanism instead of thumbscrews.

SCSI-3 devices have the 68 pin HD68 ports (approx 1-7/8” wide). Some use a latch mechanism and some use the traditional screws.

New cables are available in 3’ or 6’ lengths. Used cables can be less than 3′ or 4-6′. Some have metal ends. Colors vary.

3 foot cables

  • A) HD50 to DB25. M/M. SCSI-2 to 25 pin SCSI-1
  • B) HD50 to CN50. M/M. SCSI-2 to 50 pin Centronics (SCSI-1)
  • C) HD50 to HD50. M/M. SCSI-2 to SCSI-2
  • D) HD50 to HD68(screw). M/M. SCSI-2 to SCSI-3
  • E) HD50 to HD68(latch). M/M. SCSI-2 to SCSI-3
  • F) HD68(screw) to DB25. M/M. SCSI-3 to 25 pin SCSI-1
  • G) HD68(latch) to DB25. M/M. SCSI-3 to 25 pin SCSI-1
  • H) HD68(screw) to CN50. M/M. SCSI-3 to 50 pin Centronics (SCSI-1)
  • I) HD68(latch) to CN50. M/M. SCSI-3 to 50 pin Centronics (SCSI-1)
  • J) HD68(screw) to HD68(screw). M/M. SCSI-3 to SCSI-3
  • K) HD68(latch) to HD68(latch). M/M. SCSI-3 to SCSI-3

6 foot cables

  • L) HD50 to DB25. M/M. SCSI-2 to 25 pin SCSI-1
  • M) HD50 to CN50. M/M. SCSI-2 to 50 pin Centronics (SCSI-1)
  • N) HD50 to HD50. M/M. SCSI-2 to SCSI-2
  • O) HD50 to HD68(screw). M/M. SCSI-2 to SCSI-3
  • P) HD50 to HD68(latch). M/M. SCSI-2 to SCSI-3
  • Q) HD68(screw) to DB25. M/M. SCSI-3 to 25 pin SCSI-1
  • R) HD68(latch) to DB25. M/M. SCSI-3 to 25 pin SCSI-1
  • S) HD68(screw) to CN50. M/M. SCSI-3 to 50 pin Centronics (SCSI-1)
  • T) HD68(latch) to CN50. M/M. SCSI-3 to 50 pin Centronics (SCSI-1)
  • U) HD68(screw) to HD68(screw). M/M. SCSI-3 to SCSI-3
  • V) HD68(latch) to HD68(latch). M/M. SCSI-3 to SCSI-3


If you are in need of cables with different connectors:

Regular SCSI Cables (SCSI-1) are found here.

PowerBook SCSI Cables are found here.

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SCSI Terminator Centronics

SCSI 1 or SCSI 2

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SCSI pass-through terminator. For use with SCSI or SCSI-1 hard drives. Centronics 50 pin Male to female. This is brand new!

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Price: $10.00

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