Question about Macally 1 Bay phr-250a (PHR-100A) USB 2.0 External Drive Case

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Macally PHR-250A Can you tell me how to open the enclosure. The factory packed item came with no instructions. Thanks, Ethan Kavet

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Re: Macally PHR-250A

There should have Quick installation guide and CD with manual inside.

You may download the manual from

Posted on Jan 03, 2008

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Macally G-S350SUA power supply

  • I have the same Macally hard drive enclosure and I misplaced my power supply also. I used an old IBM Thinkpad power supply. These are common and cheap. The Macally enclosure states 12V DC input, and the Thinkpad PS is rated at 16V but it works fine. The plug and polarity are correct.

Oct 11, 2012 | Macally G-S350SUA 3.5" Hard Drive...

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I lost my ac adapter for my PHR-100ACB external drive. I do not have a manual for same. Please point me to where I can download a manual and the part number, relative price, and/or where I can get a...

Here is the manual for the PHR-100AC, this is for e, but it will work for your B model as that's just a revision I believe.
Unable to find a replacement ac adapter. You could try calling Macally directly @ 909. 230.6888 or . My experience this will cost you about $20 anyway. It may be worth just picking up a new enclosure. At least you'll have spare parts for everything else. It's $40 on newegg.
Good luck! I know this isn't everything you were looking for, but if this helps at all please give a positive rating. Thank you.

Jul 01, 2011 | Macally 1 Bay (phr-100acb) Firewire/USB...

1 Answer

I own a Macally PHR 100AC, but lost my power supply cable in a recent move. Is there some place where a new one can be purchased and if so, how much is it?

It has a very odd plug so it will be more difficult to find. (meaning you will not be able to get a universal replacement at Radio Shack, for example). I would send a note to Macally on their web site and inquire about a replacement

Dec 03, 2010 | Macally 1 Bay Slim Aluminum (PHR-100AC)...

2 Answers

SimpleTech Pro Drive 3.5'' how to disassemble

Three screws to slide off the side panel are hidden under two of the feet, and the "void if removed" sticker.

Nov 23, 2009 | Hard Drive Accessories

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Hard Drive not mounting

Check the jumper on each hard-drive.

My guess is that the WD drive has the jumper in the "correct" position, for mounting inside an external case, while the other drives have their jumper set to an "incorrect" position.

Set the jumper to MA(ster), not to SL(ave), nor to C(able)S(elect).

Sep 08, 2009 | Macally 1 Bay PHR-250CC (0701107485355)...

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PHR-100A Is not working anymore

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Okay , so there are some steps to figure out what is wrong with your external.

Firstly , if your computer makes a sound when you plug in your external , go to Start-Control Panel-Administrative Tools-Computer Management-Disk Management , and see if your external drive is listed here with your local drives. If it is listed , right click on the drive and change the drive letter to make it appear in "my computer".

If your drive does not make a connection sound when connecting to your computer and also does not show up , please follow the next step.

Remove the hard drive from the casing if possible and install it in your computer case or another external case.If the drive works , the problem is with the casing and you can ignore the drive.

Now , if the problem is with the casing , there are still 3 possibilities.

  1. The USB cable between the drive and the computer may be damaged.
  2. The circuit board which connects your drive to the interface of the external may be blown.
  3. The power supply (if applicable) may have a blown transformer.
The latter is the easiest to diagnose , does your external light up at all when you plug in the power? If not , then this is probably your problem. On the bottom of the adapter is a label which you will be able to use to have a new adapter made at your local electronics shop and this will cost about $30 max. They will also be able to test the adapter with a clamp meter to see if this is really the problem and this should be free.

The second component you want to test is the USB cable. If you have a printer , swop out the cables and see if your printer functions normally. Most externals use the same connector so you should be able to test it in this manner. If the cable works go on to the last step. If the cable is defective , replace it with a new one which you can find for about $10 at most electronics and chain stores.

The last component to test is the circuit board. This is a bit of a grey zone as you probably won't be able to spot the blown component unless it failed really badly. With the casing already opened , locate the external's circuit board and check to see if you have any blackened components or fluids leaking from some components. If all the other components of the external worked perfectly , then this is the faulty part. It is not really economical to replace the circuit as most of the time it is out of production by the time you need to replace it and it still costs a lot even if it is available so if your drive is working perfectly when connected via sata or IDE on your computer , the best is to buy a new casing and place your old drive in the new casing.

A casing costs about $50 and you could get it at most tech shops and big chain stores like Best Buy.

I hope this solves your problem and please reply if you need more help.

Kind Regards

Feb 08, 2009 | Macally 1 Bay phr-250a (PHR-100A) USB 2.0...

1 Answer

Blue light is not working

What is this?? Is the drive internal, or by the blue light I assume you mean it is external. Is the blue light really all that nessesary? If you need it to shine (and I assume you just WANT it to shine 'cause it's PRETTY) then try installing any software that came with it, and by the way, what brand is this?

Mar 08, 2008 | Macally 1 Bay phr-250a (PHR-100A) USB 2.0...

1 Answer

Macally phr-250a

Jm, Unhook the drive from the computer turn off the drive and turn-off the computer. After about a minute plug the drive into the computer and turn it on, then turn the computer on. That should help find the drivers. If not post back any errors. Good Luck, Tim

Feb 07, 2007 | Macally 1 Bay phr-250a USB 2.0 External...

1 Answer

External USB drives not visible in OSX or XP

For the WD HDD, you need to set the jumper as Single or Master

For other HDD, you need to set as Master

Dec 21, 2006 | Macally 1 Bay (phr-100acb) Firewire/USB...

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