I'm currently on my 20th USB 3.0 hub and I think I've found a solution to the spontaneous and unprovoked dismounts, hubs mounting as USB 2.0 or USB 1.1, and the other unstable conditions that Apple presented us with.
I've been fighting this Apple/ USB 3.0 boondogle since June 2012. I say boondogle because hubs that were totally unusable with my MacBook Pro Retina were loaned to a friend with PCs. He still has one of the early ones and describes it as operating "like a dream". I've received a warranty exchange from Apple for my MacBook Pro Retina. That wasn't the answer.Same problems. I brought a USB 3.0 hub with 3 drives to an Apple Store and tested them with a late 2012 MacBook Pro Retina and an iMac 27". The drives failed to mount on both at times. From my experience working with Apple and vendors on this matter, the hubs worked on PCs, but not on Macs.
Last summer I I took a chance and bought a Plugable 7-Port USB 3.0 powered hub from Amazon. It also had the “problems" and was returned. Plugable followed up with another at no charge. It was unsatisfactory so they sent another last September at no charge, with the understanding that I'd use the hub and give the pros and cons as I saw and experienced them. That was agreeable to Plugable.
The new hub had the VIA VL812 chipset that had the current firmware installed. That appears to be the answer. The hub with new firmware has been operating on my MacBook Pro on and off for a couple of months in total. I've not had an error that could be attributed to the hub. What I have found was poor connections at the drives with the Micro-B connectors. The cables were replaced and all has been good since. I often have 4 to 7 portable and desktop drives connected.
The key words, from what I can determine, are: USB 3.0 Hub (VIA VL812 Chipset with Latest 908x Firmware)
Currently I’m using the Plugable USB3-HUB7A, the “A” is for brushed aluminum, and it' has 7-Ports. It looks Apple-like. In comparison with other hubs that I currently own, or have used, there are several things that I find notable:
It uses the chipset and firmware referred to above, and it works.
It uses a Type-B connector that is larger and makes positive contact. Some use the Micro-B connector which I’d found to be unreliable and now avoid after a bad history, and a box full of cables with intermittent connectors. A solid connection on the cable going to a Mac is critical.
It has a power switch so power can be turned off when not in use.
This model won’t charge an iOS device. Both Plugable and Anker have models with an extra port that only provides power for charging. It’s not connected to sync or transfer data.
The USB plugs fully engage to the “hilt” of the plug. Some models don’t fully enter the receptacle leaving excess room for lateral movement and the possibility of a broken connection. I like the solid feel.
It has non-slip material on the base to reduce movement on the surface it’s used on.
The brushed aluminum looks nice.
Read the descriptions on Amazon for more if interested.
In the interest of fairness, Anker (previously LaptopMate & Uspeed) provided several hubs for testing early on that were found to be unstable, but better than the others I'd found at that time. Thus my qualified comment about them on this board. In a later email Sunnie mentioned an Anker hub they had with the VL812 chipset and updated firmware. Which firmware remains an unanswered question. They didn't provide a hub for testing, but their hub could be using the same chipset and firmware, However, I don't know that. (I do know that the 7-Port black Anker hub appears to be identical to a Plugable hub.) Sunnie has been evasive on recent questions about firmware, and reliability with a Mac, so I really can’t recommend them at this point.
If you're looking for more information on Firmware, and some assurance that an answer may have been found to this puzzle, check out the below link to the full article on the Plugable site.The paragraph below is an excerpt to whet your appetite.
I’d give other references if I was aware of them. Plugable has posted some good articles on their site/ blog, and they have been very open with details. So much so that I’ve referred other vendors to their site for information. The excerpt below is the first paragraph of their article. It goes on from there. It’s recommended reading if you’re reading this. Hopefully it will provide some useful information to others fighting this battle to get USB 3.0 hubs to work on 2012 Macs. It’s been time-consuming and expensive, but this might be the light we’ve been seeking.
Plugable USB 3.0 7 Port Hub Firmware History
OCTOBER 30, 2013 JOSHUA HENRY
Customers purchasing Plugable hubs after 9/2013 should not need to worry about firmware updates. Firmware versions on hubs shipping after September 2013 on all Plugable hubs have no known issues with Linux, Mac, and Windows hosts.
http://plugable.com/2013/10/30/plugable-usb-3-0-hub-firmware-upgrades2
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