When I can, I tend to answer my own questions if I find an answer as you will observe from some on my profile. Sign up using Email and Password. It always failed and I got the message about the drive not being properly ejected before unplugging it. Super User works best with JavaScript enabled. Currently I reboot the computer every time I eject the external drives.

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Following advice here and elsewhere I was searching for a native supported card no kext amends and went for this one on ebay.

CaldigitCalDigit SuperSpeed Expresscard for laptop

For OS X, simply install included software and plug the card. So unless you really must have USB 3. I’m curious as to what chipset is in use in the card. I called exprescard support Caldigit and they had no idea what I was saying, so they offered to get back to me the following day.

Reboot back in to Recovery Mode again Step 5: One option while it is not ideal but necessary is to disable kext signing, follow these steps after you have installed your kext: To the person who originally downvoted me – I’ve answered my own question with caldivit solution – here you go: Jason Aller 2, 5 caldifit However, keep monitoring the situation for future versions of Mac OS X, in case the list of supported Macs changes if they drop those Macs with FL support and therefore leave out the driver for it in future versions of the OS to focus maintenance costs on hardware that they choose to support.


But not lucky so far – plugging in USB 3. Enter new zip code to refresh estimated delivery time. It always failed and I got caldigif message about the drive not being properly ejected before unplugging it. Post as a guest Name.

Open the Terminal expresscaed the menu bar Step 2: With new USB 3. Where to buy a ExpressCard 34 with the FL chipset: Pops out of the slot far too easily.

Haven’t tested long file transfers yet but can now look at getting fast usb 3. Sign up using Facebook.

Note however that this could be a flawed design of the MacBook. Update Unrecognized Zip Code.

Tech Specs

The card caligit never able to maintain the drive connected to the computer for more than a couple minutes at a time, I tried through usb hubs, directly to the computer and with the extra power cables connected to both the card and the drive.

I have also attempted to rebuild the kext cache as explained here: I think the ongoing support is because some Macs with built in USB3 used the FL chipset and therefore those Macs that are on the supported list for Sierra that have this chipset will work. See any errors on this page?


I was able to transfer 10GB in less rxpresscard 3 minutes. Super User works best with JavaScript enabled. This is ideal for bus powered portable devices, like 2. Bottom line, so far, able to immediately speak to a human being when I called with a question, which for me is a big plus.

Tests show me that I’m getting about 4 times the speed compared with USB 2. Sign up using Email and Password. Rated 3 out of 5 by Anonymous from Works with a few issues on the Mac I’m using this in a Macbook Pro 17 i7 system.

CalDigit FASTA-2ex 6G eSATA Card for Laptop

expredscard If it says “error getting variable”, continue with these steps: Rated 4 out of 5 by Anonymous from Rxpresscard what it says I use this card to make fast backups of my drives. Rated 1 out of 5 by cabs from Doesn’t work, Caldigit’s poor cust serv. Also, please note that this is ongoing research for me – as you can see I’ve already looking into this myself but not had success- hence my asking this usually lovely community for advice.