Mac Daniel's Advice

Older Mac, Newer SCSI

- 2000.11.15

Q: My Mac 6200CDhas a 25-pin SCSI connector, and I would like to use an external hard drive or CD-RW. Most of them come with the newer 50-pin or 68-pin SCSI-2 or Fast and Wide SCSI. Can I use any of these newer drives with my Mac?

A: Yes. I had this issue just before selling my beige G3. I was doing a backup with a whole new SCSI burner. I had the 25-pin connector in the back of my Mac, but the cable that shipped with the burner was a 50-pin cable. I scrambled to find an adapter or cable somewhere and finally found it. From experience, a cable with 50-pin or 68-pin SCSI connector goes to a Centronics connector - this is what I have seen most of the time - in the back of the peripheral. I'm talking about the bigger Centronics, since there are two sizes.

All you have to do is to get a cable that goes from Centronics to male 25-pin, or a cable that uses the right connection in the back of the peripheral and that has a male 25-pin connector on the other end.

They really work, with only one limitation. It will be limited in performance since 25-pin connectors do not offer the same transfer speed as 50 or 68, but you get to use the hardware without getting a new Mac.

For example, my 10x burner was limited to 4x because the connector could not sustain anything faster, but if your backup is on the line, you are only happy to see the thing working, trust me on that :-)

Not sure if you should upgrade your old Mac or replace it? Check the Mac Daniel index to see if we've already addressed your problem.

Recent Mac Daniel columns

• WiFi Hardware Compatible with Desktop Macs Running OS X, MetaPhyzx, 03.11. USB, ethernet, PCI, and other wireless hardware compatible with Mac OS X.
• WiFi CardBus Adapters Compatible with PowerBooks, MetaPhyzx, 03.11. CardBus hardware and drivers compatible with PowerBooks running Mac OS X.
• WiFi PC Cards Compatible with PowerBooks Running OS X, MetaPhyzx, 03.11. PCMCIA/PC Card hardware and drivers compatible with PowerBooks running Mac OS X.
• WiFi PC Cards for PowerBooks Running Mac OS 9, MetaPhyzx, 03.10. PCMCIA cards and drivers reported to be compatible with PowerBook running the Classic Mac OS.
• More in the Mac Daniel index.

Links for the Day

• Mac of the Day: 15" MacBook Pro Core Duo, Jan. 2006 - The first Intel-based MacBook launched at 1.83-2.0 GHz, had several teething problems.
• Group of the Day: System 6 is the email list for those who choose System 6.
  
• November 22 in LEM history: 99: Gradebooks - 00: Leveraging Apple design - Quadra 630 to Power Mac 5200 - 02: Laptop or desktop? - 04: SuperDuper: Quick, easy, efficient backup - Cross-platform programming for the rest of us - 05: Mac video surveillance on the cheap - Which OS is best for my vintage Mac? - No 'best browser' for the Mac - Sorry state of browsers for classic Macs - 06: Core 2 means cooler running 'Books - 2.0 GHz G4 upgrade
• Support Low End Mac

Recent Content on Low End Mac

• Apple's Tablet an End Run Beyond Netbooks, Frank Fox, Stop the Noiz, 11.20. Whatever Apple has planned will leverage existing technologies while going beyond what its competitors can offer.
• i5 iMac Benchmarked, Mac mini 'Shouldn't Be Overlooked', Twitter Client for Classic Mac OS, and More, Mac News Review, 11.20. Also why Apple leaves the low end to others, 10.6.2 fixes video playback problem in 27" iMac, 3D Leopard and Snow Leopard performance, and more.
• Apple #4 in Reliability, Apple Tablet a Gadget for All?, HP's i7 Notebook Outdoes Mac Rivals, and More, The 'Book Review, 11.20. Also Flash 10.1 improves video on Hackintosh netbooks, thin-and-light notebooks impress, Windows XP finally on the way out, and more.
• NASA Chemical Sensor for iPhone, Smartphone Death Match, iPhone Earrings, and More, Ian R Campbell, 11.20. Also mobile phone dangers, new apps, GPS solution for iPod touch, new iPod and iPhone cases, and more.
• Replacing the Hard Drive in a Clamshell iBook, John Hatchett, Recycled Computing, 11.19. Yes, it is one of the most difficult Apple notebooks to disassemble and reassemble, but a 10 GB hard drive just will not do.
• IBM Model F: A Great Old Keyboard with an Outdated Layout, Tommy Thomas, Welcome to Macintosh, 11.19. Although it used a different technology than the revered IBM Model M keyboard, the Model F was a great keyboard in its own right.
• Soft Touch Keyboards, Wireless Mouse Options, Loving SeaMonkey 2, and More, Charles W. Moore, Miscellaneous Ramblings, 11.18. Also the future of browsing with PowerPC Macs and the multiple mouse input bug introduced with OS X 10.5.8.
• More links in our archive.

Recent Deals

• Best eMac Deals, 11.18. Used 1 GHz Combo, $100; SuperDrive, $269; 1.25 GHz Combo, $119; SD, $319; 1.42 GHz Combo, $289; SD, $498.
• Best Mac OS X 10.6 and Mac Box Set Deals, 11.18. "Snow Leopard", single user, $25; 5 users, $45; Mac Box Set, single user, $139; 5 users, $180; Server, $414. Shipping included.
• Best Xserve Deals, 11.18. Used 1 GHz dual G4, $649; 2.3 dual G5, $795; 3.0 4-core Xeon, $1,899; refurb 2.26 4-core, $2,499; new, $2,888; refurb 8-core, $2,999; new, $3,449; more.
• Best 15" MacBook Pro Deals, 11.17. Used 1.83 GHz, $750; 2.16, $800; 2.33, $900; refurb 2.4, $1,299; 2.53, $1,449; 2.66, $1,699; 2.8, $1,899; new 2.53, $1,579; 2.66, $1,799; more.
• Best Power Mac G4 and AGP Video Card Deals, 11.17. Used 400 MHz, $50; 933 MHz, $80; 500 dual, $60; 867 dual, $90; 1 GHz dual, $150; 1.25 GHz dual, $225; 1.42 GHz, $499.
• Best Mac OS X 10.5 Deals, 11.17. "Leopard" upgrade, $80; single user license, $135; 5 users, $173; Mac Box Set, 5 users, $230; Server, 10 users, $340; unlimited, $850. Shipping included.
• Best Mac mini Deals, 11.16. Used 1.42 GHz G4 mini, $379; 1.66 GHz Core Solo, $419; 2.0 Core 2, $450; new 2.26 GHz nVidia, $580; 2.53 GHz, $769; Server, $990.
• Best iBook G4 Deals, 11.16. Used 12" 1.07 GHz Combo, $210; 1.33 GHz, $298; 14" 1.33 GHz, $398; 1.42 GHz, $479; SuperDrive, $498.
• Best iPod shuffle Deals, 11.16. Used 1 GB, $35; 4 GB, $65; refurb 1 GB, $39; 2 GB, $59; new 2 GB, $55, 4 GB, $75. New and refurb prices include shipping.
• More deals in our archive.

About LEM | Support | Usage | Privacy | Contacts

Entire Low End Mac website copyright ©1997-2009 by Cobweb Publishing, Inc., unless otherwise noted. All rights reserved. Advice presented in good faith, but what works for one may not work for all. Please report errors to .
  LINKS: We allow and encourage links to any public page as long as the linked page does not appear within a frame that prevents bookmarking it.
  Access our RSS news feed at http://lowendmac.com/feed.xml.
  Email may be published at our discretion; email addresses will not be published without permission, and we will encrypt them in hopes of avoiding spammers. If you prefer your message not be published, mark it "not for publication." Letters may be edited for length, context, and to match house style.
  PRIVACY: We don't collect personal information unless you explicitly provide it. For more details, see our Terms of Use.
  Low End Mac is an independent publication and has not been authorized, sponsored, or otherwise approved by Apple Inc. Apple, the Apple logo, Macintosh, iBook, iMac, eMac, iPod, iPhone, PowerBook, MacBook, MagSafe, Mac Pro, Apple TV, and AirPort are registered trademarks of Apple Inc. Additional company and product names may be trademarks or registered trademarks and are hereby acknowledged.

Custom Search

Navigation

Used Mac Dealers
Apple History
Video Cards
Email Lists

Favorite Sites

MacSurfer
MacMinute
MacInTouch
MyAppleMenu
InfoMac
Macs Only!
The Mac Observer
Accelerate Your Mac
RetroMacCast
PB Central
MacWindows
The Vintage Mac
   Museum
DealMac
DealsOnTheWeb
Mac2Sell
ramseeker
Mac Driver Museum
JAG's House
System 6 Heaven
System 7 Today
the pickle's Low-End
   Mac FAQ
Abandonware
   Petition
Mac vs. PC Info

Affiliates

The Apple Store
Mac Connection
B&H
MacMall
TechRestore
ExperCom
Crucial Memory
batteries.com

Advertise

All of our advertising is handled by BackBeat Media. For price quotes and advertising information, please contact at BackBeat Media (646-546-5194). This number is for advertising only.

Problems viewing this page with Internet Explorer 5.5 or 6? It works fine in other browsers, including IE 7. We recommend Firefox for those using Windows, as it is standards based and more secure than IE 6 (and earlier). More LEM visitors use Firefox than any other browser.