Customer Review

Reviewed in the United States on October 2, 2018
I have an expensive portable Western Digital RAID drive (see it at WD 2TB My Passport Pro Portable External Hard Drive - Thunderbolt - WDBRMP0020DBK-NESN) that uses a Thunderbolt 2 connection. When the new MacBook Pro 13 inch models came out, they had nothing but USB-C ports (running Thunderbolt 3: confused yet?). So, my portable RAID drive instantly became useless, because there was no way to connect that existing drive to the new MacBook Pro.

This situation may never be a problem for you, unless you, like me, are attempting to connect a Thunderbolt 2 drive to one of the new Thunderbolt 3/USB 3 ports like those found on the new MacBookPros. But if you are, you'll need this adapter, which facilitates such a connection. It's one of the few of its type on the market, but if you need it, you NEED it. It is well-built, and I've had no trouble with it on multiple Thunderbolt 2 drives I have been using. It's physically larger than most dongle-style connectors, with a large, rounded plastic body on one end, undoubtedly where the circuitry and microchips reside to perform the data stream conversion between Thunderbolt 2 and 3. (It also very likely accounts for the high price of the connector, because of the requirement to use controller chips to make the Thunderbolt 2 to Thunderbolt 3 connection possible).

So, I recommend it highly because it works so well, and is built with very high quality. But it is quite expensive. However, if you need it, I would go with this model than some third-party brand that might show up, because Thunderbolt (either 2 or 3) is a modern, high-speed transfer format, and you want to ensure maximum transfer speed with uncorrupted data transfer.

Note:
This entire subject discussion becomes even more complicated because, with the "old" Thunderbolt 2 standard, the physical plug is exactly the same as the "Mini Display Port" connector type. Who dreamed up that bright idea? One (Thunderbolt) transfers DATA AND VIDEO, and the other (MiniDisplayPort), VIDEO ONLY, but they are physically exactly the same! Now, to confuse us further, throw in Thunderbolt 3, and a simultaneous upgrade to USB in the form of USB 3, followed by the decision to make USB 3 and Thunderbolt 3 intra-compatible, you're sitting there, scratching your head sometimes. Do a web search for C|Net's Article on Thunderbolt 3 and USB 3, and they lay it out in all it's intertwined (no pun intended) glory. But, in spite of all the ways you can get confused, if you have a true Thunderbolt 3 connection with a Thunderbolt 3 drive, wow, is it fast (shockingly, up to 40 Gbps). This is the future of connections, so be ready for it. But the thing to note is that USB 3 is a description of a PHYSICAL CONNECTOR. That USB 3 connector might be running Thunderbolt 2, Thunderbolt 3, DisplayPort, and/or USB 3.1 (!). Thunderbolt, DisplayPort, USB 3.1, etc. are examples of PROTOCOLS, and each can run on the physical connector USB 3, but you have to determine what protocol your device and computer support whenever you are using USB 3. The cable may physically fit, but the devices on both ends (plus the cable itself) must all support the same protocol for them to work. Whew.
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