FireWire to SATA adapters for the Mac

My Situation:

I currently have 14 hard drives hooked up to my iMac. I am using three DAT Optic qBox-f enclosures that hold four IDE hard drives, each loaded with 500GB Seagates. These enclosures support FireWire 400 and 800. I hook them to my iMac (which only has FW400) and then daisy chain them through the FW800 ports on the back of the enclosures.

And the end of the chain is two bay enclosure that supports FW400 and USB. That gives me 14 active 500GB drives online for video storage. (I also have a few other 250s and 200s I swap in and out from a single case, when I need to.)

The Problem:

I’m out of disk space, and the newer 1TB-size drives do not seem to be available in IDE. The world is moving towards SATA drives. SATA has been used internally in Macs for years now, as well.

I am also out of desk space, so adding more of these qBox-f enclosures and more 500GB IDE drives isn’t really what I want to do.

The Goal:

I now want to migrate my entire system from 500GB IDE drives to 1TB+ SATA drives. If I wanted to keep my existing enclosures, DAT Optic makes an adapter that will plug on to the back of each SATA drive and give it IDE hookups. At $16/each, though, I’d rather just find new SATA enclosures and sell what I have and start fresh.

The Roadblock:

While two bay FireWire enclosures could be found for $60, and quad bay enclosures for under $200, once you step up to SATA, for some reason FireWire support is massively expensive. I’ve seen quad bay FW/SATA enclosure for well over $400, which is out of the question on my budget.

USB to SATA enclosures are abundant, and can be found for similar prices as IDE models, but USB is more CPU intensive and slower than FireWire. When dealing with multi-track audio (in GarageBand) or video (in Final Cut), I already run into situations where I get the dreaded “too many tracks to realtime preview” errors. So, even if USB only adds 5% more CPU time, and is only 1% slower, that would still impact my workflow.

The Plan:

I plan to find a way to use the FireWire ports of my iMac to hook up enclosures that contain SATA drives.

This is a log of my progress so far.

My Progress So Far:

One of the advantages SATA has is that they defined the port connectors and spacing. This allows for drive enclosures where you can slide a SATA drive in without having to deal with cables. I discovered some trayless enclosures that let you pop open the front and just slide drives in, as if they were cartridges in an old Atari 2600.

I did a search on Amazon and found the v7age220-EF 2-bay enclosure made by iStarUSA. It could hold two SATA drives, and hook up via FW800 or USB. It was also trayless, meaning you could open up the two doors on the front and just exchange drives, without using any tools.

The problem was the price – $179. Sure, it had more indicator lights, and supported some RAID stuff (without having to use a disk utility to reprogram the case, like some of my others), but that was over $100 for what I’ve found similar IDE enclosures.

The company selling the drive through Amazon was They had it directly from their site at $149 with free shipping, so I went ahead and placed an order. Unfortunately, after a week, I checked and noticed it still hadn’t shipped, and the product page now said they were out of stock. I contacted GoHardDrive and they apologized, and cancelled my order.

Instead, I purchased the USB version of this case – the v7age220-SAU. Instead of FW/USB (like the -EF model), the -SAU model supported USB and eSATA. And, it was only $85!

So, at least according to iStarUSA, having FW adds about $80 to the cost of an enclosure. I’m not sure I buy that, since even CompUSA (high price retail store) sold single-drive FW/USB enclosures for less than $60 (for the entire enclosure and power supply).

I received the v7age220-SAU and it worked great. It was quiet, nicely built (except for the front doors which seem pretty flimsy) and fast. But, I still wanted a way to use FireWire.

FireWire to SATA – The Quest Begins:

While I was able to find tons of USB-to-SATA adapters dirt cheap, at first I couldn’t find anything that did FireWire-to-SATA.

Eventually, I discovered two converter boxes sold by I have not been able to find these sold anywhere else on the Internet, which is kind of bothersome.

The first is a tiny box, currently sold for just $30, that adapts USB or FireWire to a SATA port:

The second model was similar, but had an additional FW pass through port, so you could daisy chain. It sold for $60 (which seems unreasonably high just to add a second FW port):

The $30 version said it only worked with drives up to 500GB, while the $60 model claimed 1000GB (1TB). I wrote to ask if this was true, and said they would have to check. (I haven’t heard back yet.) This means the first model is instantly not usable with the modern size drives (currently shipping 1TB and 1.5TB drives) which seems odd.

But, my idea was, I could get one of these, then plug up a cheaper SATA-only enclosure, like the iStarUSA v7AGE420-ES 4-Bay Trayless eSATA RAID Box External Hard Drive Enclosure for only $165! Now we’re talking! I could actually get a better (?) four drive enclosure that was then use a cheap $30 adapter box. The end result would be FireWire performance from the iMac to cheaper SATA high capacities drives.

But would that work? The answer was NO, and I’ll explain more in a moment…

Also, a co-worker pointed me to this device: FirmTek SeriTek/SpyderHUB

It was designed for this very purpose – to hook a Mac with FireWire up to SATA enclosures. It had two SATA outputs, and accepted both FW and USB as input. But, the adapter alone was $129. It also noted it was not compatible with “Port Multiplier” enclosure. This was a new term to me, and I did some research.

Port Multiplier is the magic that lets one SATA connector then go off to multiple drives. The iStarUSA enclosures are PM devices. In JBOD (just a bunch of disk) mode, each of the drives inside would appear as a separate hard drive, but only if the SATA controller on the computer supported PM.

Long Story Short: (too late!)

It turns out, the $60 box from does not support PM devices. Plugging it up to the v7age220 USB/SATA box only shows up the top drive. (I speculate that if I ran these enclosures in a RAID or BIG mode, they would appear as one massive device to the computer, but I have not tried. I do not want this. If one drive fails, I don’t want it taking out my whole array. I’d rather have separate drives I can back up separately.)


None yet, but if you can deal with the performance of USB, getting a hub and some of these iStarUSA enclosures may be a decent way to go (but it will cost more than similar IDE enclosures would have).


I have done extensive benchmarking of drive performance using USB to SATA adapters, the CoolDrives FW/USB adapter, and running straight to the iStarUSA enclosure (all to the same Western Digital WD1001 drive).

I will eventually be posting all the results in a nice table here (or maybe a YouTube video of all this).

If you found this page, and this is interesting to you, please drop me an e-mail. Also, if you have better answers or solutions, please let me know.



iStarUSA – makers of the enclosures. They have yet to return my e-mails requesting information on who sells the FW models. – discount seller of the iStarUSA enclosures. They have been very responsive to my e-mail requests, but when I ordered, the item stayed listed as “Processing” for a week! When I checked the last day, it suddenly was “Shipped” and tracking showed it was expected that day. They actually shipped it the same day I ordered, but the log did not reflect that. – The only place I’ve found the FW to SATA adapter. I read much bad about them, but my experience was just fine. They shipped immediately and I had no issues.

FirmTek – Makes of a Mac USB/FW to SATA converter. Note they designed this to work specifically with enclosures they sell, and do not promise it will work with any other enclosure. I have no experience with them, but if they’d build in PM support and keep the price similar, I’d buy one today!

5 thoughts on “FireWire to SATA adapters for the Mac

  1. Dave

    This was supposed to be the one to hang that box off the Mac Mini, but it didn’t work for me. Several reviews said it worked for them, but my enclosure may be a different model.…/ref=oh_aui_detailpage_o01_s02…


Leave a Reply