Transcend 512GB JDL130, Expansion Card for MacBook Air 2010/2011 / 2012/2013 / 2014/2015 / 2017, Lightweight Design, Up to 95 MB/s, JetDrive Lite 130 - TS512GJDL130

I don't usually write reviews unless I am really happy or unhappy with a product. As far as I am concerned this is about the most amazing thing I've ever seen. I ordered late on Wednesday and it arrived mid-day Friday Amazon prime). I unpackaged it and being a woman looked for instructions. Finding none, I popped this almost microscopic item into my SD drive. ( I was sure where it belonged from the picture with the listing and the slot was the only slot it fit into). I wondered what I had to do to use it. The answer was absolutely nothing. I immediately started transferring files from my old iMac (it had been built at the end of the stone age) hard drive. My roommate had rescued/removed the hard drive, when the iMac died a very painful death. That hard drive is very flakey and rarely maintains the connection for any length of time.This little JetDrive works flawlessly. OK, I've only had it for a day. No muss, no fuss, and it fits flush with the edge of my 13" MacBook Air. This means I'm not going to bump it or catch it on anything. I purchased the MacBook Air in mid-2013 which falls with-in the designated specs. I understand that users with earlier versions of the MacBook Air have had some annoying problems with the flash drive, when the energy saving devises kick in. (I always read the negative responses before I buy something on-line.)+ The flash drive did NOT dismount when the computer went to sleep or at least remounted without me noticing.+ My MacBook immediately recognized the card, when I inserted it while the MacBook was on.+ Read and Write seem very fast. I have no numbers, subjective experience is good enough for me. I transferred files from theflakey old hard drive in smallish chunks. The old hard drive wouldn't stay connected long enough to transfer it all or inlarge chunks. It didn't take very long. The chunks all transferred in less than a minute each.+ I don't know the effect it has on battery life. For the time I was using it, with just the battery, it didn't seem to have mucheffect on the battery power consumption. I wasn't paying that close of attention. I seem to get lost in what I am doing whileon the computer and don't pay much attention to time. I usually plug the MBA in anyway - unless I don't have the energyto reach for and find the end of the power cord. I also haven't had the JetDrive long enough to check it out.Bottom line. This was a relatively inexpensive, convenient way to add storage space to my MBA. My MBA is the 128 GB version. The 256 GB version cost $200 more. With tax, this card cost me $86, for the additional 128 GB.DOWNSIDES - hard to come up with any.- It is so small it could be easily lost if not inserted into the MBA.- I would have purchased a higher capacity card if it was available.UPDATE - February 2015As other reviewers mentioned, this does pull a lot of power. It significantly impacts the time I can go on battery power alone. Sorry, never timed it.

I purchased the “Transcend JetDrive Lite 130 128GB Storage” after running across it while searching for 128GB flash drives. Wow, what a fantastic find!!The Transcend JetDrive Lite 130 is an inexpensive way of increasing your storage, and is a great concept. I just bought a new 2014 MacBook Air with a 120GB internal hard drive thinking that this would fulfill my laptop storage needs. However after uploading all of my digital photos to my new computer, I soon realized that I didn’t have much storage left on my hard drive. I tried inserting a SD card in the side of my MacBook Air, however it stuck out to far. I also tried a mini USB flash drive, which also stuck out more than I liked. Additionally, I don’t think they make a USB mini flash drive any larger then 64GB, if they do I couldn’t find one.The Transcend JetDrive Lite 130 128GB Storage was the perfect solution as well as the least inexpensive option per gigabyte. The JetDrive allowed me to double my storage space, and it sits completely flush, leaving no chance of being caught on something and being broken off.The read write access times of the JetDrive are pretty good, with 95 MB per second read and 60 MB per second write. These read write speeds are actually fast enough to run virtual machines directly from the Transcend JetDrive. I have a 32 GB Windows 7 virtual machine and a 16 GB Linux virtual machine running directly off of the JetDrive. If I were to store both of these virtual machines on the native internal hard drive it would need to take 40% of the 120GB internal hard drive which I would not be able to do without removing all of my digital photos. Placing my virtual machines on the JetDrive was a great option.You can also use the Mac operating system to encrypt the data on the JetDrive just like you would the internal drive. The JetDrive is more reliable and sophisticated than a standard SD card or USB flash drive because of the “Built-In Error Correction Code (ECC)”. The Transcend JetDrive mounts and dismounts automatically when you turn on or off your MacBook.I have used Transcend storage products in the past and have always been satisfied in the value and quality. For anyone who wants to add another 128GB to their MacBook, the Transcend JetDrive products are an incredibly great buy.If you feel my review was useful, please click the "Yes" button below. Thanks!

Yes, it is a little more expensive than the SD cards with the same capacity. Put that aside, and realize that this is a SIGNIFICANT improvement in the storage space for your computer. The extra cost is easily justified with the speed and functionality of this little guy. It has prevented or at least delayed the upgrade of the SSD in my Macbook Air.If you have not looked, the Macbook Air does not use a standard SSD drive. It uses a special chipset that is harder to find, more expensive that the SSD drives. This purchase has given me the additional space to not need an upgrade now. Since upgrading the SSD is easily 4 to 5 times the cost of this card, it is truly a no-brainer decision.I keep files on this drive that are more important than the stuff I keep in the cloud "just in case", but less critical than the operating system level stuff on the SSD. The real bonus is that this drive is EASILY ejected and I can still plug in an SD card from my computer or audio recorder, and put this guy back when I am done.I could easily see myself buying multiple drives like this if I had several large projects going at once. It would allow me to have super fast access to large amounts of data, while still keeping everything backed up and organized on the go as I do on my network RAID system.The Macbook Air puts an amazing amount of power in a tiny package. This drive makes it super easy to take a lot of storage on the go with you. HIGHLY RECOMMENDED