Home / PC H/W Reviews / External Storage Reviews / Transcend JetFlash 780 16GB USB 3.0 Review
Transcend 780G 16GB USB 3.0

Transcend JetFlash 780 16GB USB 3.0 Review

  1. Introduction
  2. Packaging and Specification
  3. Test Bench and Methodology
  4. ATTO Benchmark
  5. CrystalDisk Mark Benchmark
  6. Transfer Tests
  7. Conclusion
  8. View All

A drive no heavier than 12g and no bigger than 70 mm x 21 mm x 8.1 mm, Transcend sent they JetFlash 780 16GB USB 3.0 for evaluation. Now that USB 3.0 pretty much have taken over, 16-32gigs would easily become a new norm.


The last review for a flash drive which was done is with Corsair Stealth Survivor 16GB– which although it wasn’t able to match even close to Kingston’s DT Ultimate and HyperX. True, it has “rugged design” but other than that, it’s just an ordinary drive with USB 3.0 port. I couldn’t say it for certain where do such drives stand- but now that Transcend sent a 16GB counterpart, it should be interesting to see where both of these drives stand.

The packaging is basic. Nothing much to talk about it over here:


The drive is thin, compact, seems to be using a good quality plastic- like how USB flash drives should be unless its an eight-channel like HyperX USB flash drive.



One annoying part is that chances are- if you’re not keeping it where you remember where you kept it- you may lose the cap eventually. It is not a con- most drives except certain drives like DT Ultimate/HyperX and the retractable/non-cap flash will not usually allow fixing the cap on the back of the drive while in use. A lanyard loop is a bare minimum I would’ve liked to see at the very least, but you do not get this with your drive.

Usually, manufacturers print the model number, capacity and serial number on the connector, but Transcend has printed it on the sides of the chrome ring. I am not a fan of chromed trims, but that’s more of a preference.


Since this is the first product from Transcend that I’ve tested, I’ll talk about their RMA policy.

Like most external (flash/mechanical) devices, Transcend has its own media backup/encryption utility that you need to download from their site, but also has PC Lock and Bookmark sync utility within its Data Management software. The drives require you to register the product to avail your warranty, however, do note that Transcend has mentioned on their website clearly that you are required to show your purchase invoice.

IMG_9848 The drive comes with “Lifetime Warranty” however this is pretty common only in memory kits- but not flash drives. This is the first time I am seeing a “lifetime warranty” tag on a flash drive. In any case, I prefer if a company (any company- all of them- doesn’t matter) simply states the actual year’s warranty period- like how everyone does. Although there may be some reason to justify it in memory kits (that too only when the specification is near EOL/commercial phase out), it just simply doesn’t make much sense for a flash drive.


The actual usable space is 14.7GB.

The warranty policy that Transcend India mentioned on their website is as follows:

imageDespite the common words, different companies have a different concept of a lifetime warranty. Transcend, however- by the looks of it- haven’t mentioned how they define the lifetime of the product. I was under the impression that registering the product would show the actual period of warranty but alas:
imageThere is an option for you to delete it, but you can always delete and register it again with a newer date. On the packaging Transcend mentions registering the drive on the site and the site says you require the purchase proof of avail warranty.


Despite being on Transcend India’s own website, the warranty policy that they’ve mentioned seems only to be for Transcend USA.

Keeping a vague “lifetime warranty” puts people in confusion and also may face an issue during replacement. Unlike memory kits- unless you have a healthy kick to keep old systems around- flash drives will mostly be there with you. In a corner or under your sofa- its still going to be there. USB 2.0 ruled the world for so many years and then came USB 3.0- so what’s the actual lifespan of such products? If it does have a particular period, why not mention it? This way buyer is confident about the warranty period- rather than being at a mercy of the company/service centre/distributor policy which would change without the buyer’s notice. People working in stores and even at times- distributors- have a tendency to give assurances that product warranty is technically so-and-so years- but we live in a cynical world- actual warranty period should be mentioned.

It gives me great pleasure to mention this every time I put up a review. Thanks to the hardware support by Asus, Gigabyte, Kingston, Western Digital and Coolermaster who give me hardware support by updating my test rig no strings attached. It helps me to test their and other manufacturer’s hardware in a proper way. Thumbs up to these guys!

The following hardware is provided by the followed manufacturers:

  • Gigabyte India for providing Gigabyte 890GPA UD3H Rev 1.0 motherboard
  • Asus India for providing Asus 990FX Sabertooth motherboard
  • Kingston Taiwan for providing hardware support with memory kits and SSD drive.
  • WD India for providing WD 300GB HLFS Velociraptor Hard Drive.
  • Coolermaster India for providing Coolermaster GX450 RS-450-ACAA-D3 Power Supply
Test Setup for: Transcend JetFlash 780 16GB USB 3.0
MB+ CPU Gigabyte 890GPA-UD3H Rev 1.0+ AMD 965BE
Memory Kingston KHX1600C9D3P1K28G HyperX Genesis 8GB 1600MHz DDRIII
Primary OS drive WD 3000HLFS Velociraptor 300GB/WD 320GB BLUE 320AAJS
Power Supply Corsair TX750
OS Windows 7 Ultimate 64Bit SP1

The Benchmarks that I am using are as follows:

ATTO Benchmark Test File Size= 0.5 to 8MB- Read and Write Pass 3

CrystalDisk Benchmark with Pass 3, each with 5 re-runs 1000MB File Size

Transfer Tests: 1.34GB Assorted Photos transfer Test, 11.34 ISO File Transfer Test and 1.27GB Compressed Data File Transfer Test with TeraCopy

The drive was first stress tested using Anvil Endurance. Unlike via SATA III bandwidth, Anvil takes time to do stress testing on flash. So, the stressing testing that I use is 2 loops that create 99999 files with 1MB file size with 12MB of free space. The drive is formatted in the exFAT mode before stress testing is done- and no secure erase is done to the drive.

Do note that all flash drives are first stress tested using ATTO endurance testing for 1-2 days and then given a secure erase and reformatted to ex-fat format before benchmarking to be sure that there are no faults/ defects.

The ATTO Disk Benchmark performance measurement tool is compatible with Microsoft Windows.

Measure your storage systems performance with various transfer sizes and test lengths for reads and writes. Several options are available to customize your performance measurement including queue depth, overlapped I/O and even a comparison mode with the option to run continuously. Use ATTO Disk Benchmark to test any manufacturers RAID controllers, storage controllers, host adapters, hard drives and SSD drives and notice that ATTO products will consistently provide the highest level of performance to your storage.


The performance run after 64KB file size for Both read and write are maxed out.

In comparison with other drives:


Transcend’s JetFlash 780 has a significantly higher read performance compared to Corsair Survivor Stealth 8GB and it is practically twice the Corsair Survivor from 32KB file size read.


Transcend JetFlash 780 and Corsair Survivor Stealth exchange blows till 8KB, a noticeable bump in performance with 32KB, but for the rest Transcend takes a lead. DataTraveler HyperX- as expected has the lead.

Transcend 780G has a stronger 512K Random read.


By comparison (except with the exception of 4K/ 4K QD32), the Transcend JetFlash 780 has faster read/write compared to survivor counterpart.

CDM Read

CDM Write

Difference between the transfer from the storage drive to flash drive shows a difference of second(s).



To simply put it: a flash drive is with you for a very long time. Although higher warranty period does not translate to higher product lifespan, it is more as an assurance if the unit fails for whatever defect/issue it may have, the manufacturer- within the company policy will take care of the issue unless its the customer who damaged the unit. Mentioning a fixed period assures the consumer. Other drives that I evaluated- including the El Cheapo drives- have a warranty period mentioned on this. Also, there should be an assurance that after registering the product, the RMA should be much quicker- and shouldn’t really take anything more than 5-7 working days even for a walk-in. After all, even if the customer doesn’t register, registration/S/N number authentication doesn’t take a minute.

A drive no heavier than 12g and no bigger than 70 mm x 21 mm x 8.1 mm, Transcend sent they JetFlash 780 16GB USB 3.0 for evaluation. Now that USB 3.0 pretty much have taken over, 16-32gigs would easily become a new norm. The last review for a flash drive which was done is with Corsair Stealth Survivor 16GB- which although it wasn’t able to match even close to Kingston’s DT Ultimate and HyperX. True, it has “rugged design” but other than that, it's just an ordinary drive with USB 3.0 port. I couldn’t say it for certain where…

Review Overview

Performance - 7
Storage Space - 7.5
Overall Value - 8


BBQ Score

Summary : The drive is much quicker when to comes to read performance, but there is a minor bump in Write performance. The dimension of the flash drive is smaller, but Transcend needs to be clear about the warranty period. But Kingston DT Ultimate G2 and HyperX are still the best performing flash drives which are tested here so far.

In much shorter words, having “lifetime warranty” for a flash drive is silly in my opinion. It is not a memory kit standard that gets replaced with a new gen like how DDR2 replaced DDR3. USB 2.0 was around for a very LONG time, so will the actual USB connector type.

At a very least, a lanyard loop should have been provided with a JetFlash 780 USB 3.0 drive.

India U.K. U.S.
Rs. 1,709/- $26.71 £18.28

Leave a Reply

Your email address will not be published. Required fields are marked *