ESD400K
USB 3.0 Portable SSD
ESD400K Portable SSD
ESD400K
Product
Capacity
128 / 256 / 512GB
1TB
Size (mm)
92 x 62 x 10.5
Weight
56g
Interface
USB 3.0 / 2.0
Performance*
Read: Up to 410 MB/s
Write: Up to 380 MB/s
System
Requirement
Windows 8.1/ 8/ 7
Mac OS 10.4 or later
Linux Kernel 2.6.31 or later
* Note: Speed may vary due to host hardware, software and usage.
Features (1)
Ultra-portable
Handy shape, about the size of a playing card

Pocket-sized design makes it
a great travel companion to
bring along all your digital files:
on a business trip, on vacation,
or sharing with friends.
Features (2)
Light weight & Hard-rock durability (vs. portable HDD)
Unlike traditional mobile hard drives, ESD400K has no moving parts and flash-based
design is more durable, able to withstand high impact.
(1500G/0.5ms operating shock, 5 times greater than an HDD)

Mechanical design
of an HDD:
Platter
Spindle
Actuator arm
70% lighter
75% smaller

ESD400K won't weigh down your
notebook when you're on the go
Features (3)
Up to 1TB storage & Ultra-fast transfer speed
Up to 410MB/s read, 380MB/s write
ESD400K
up to 1TB
of storage!

Great for large file transfers:
Lightning-fast transfer of full 4.7GB DVD.
Features (3) – cont.
AJA on Mac
CrystalDiskMark Performance
Model P/N
Sequential Sequential
Read
Write
Random
Read
Random
Write
Read/Write
TS128GESD400K 410 MB/s
170 MB/s
15 MB/s
10 MB/s
430/150 MB/s
TS256GESD400K 410 MB/s
250 MB/s
15 MB/s
10 MB/s
430/230 MB/s
TS512GESD400K 410 MB/s
380 MB/s
130 MB/s
120 MB/s
440/380 MB/s
410 MB/s
380 MB/s
130 MB/s
160 MB/s
440/380 MB/s
TS1TESD400K
With high capacity up to 1TB and ultra-high transfer speed,
ESD400K is a great accessory for Mac.
All performance is tested under UASP
Features (4)
UASP support
Come up with a better performance than traditional USB 3.0
Traditional USB3.0 (BOT operation) :
Data and commands transfer on the same pipe and commands are processed sequentially.
UASP:
Data and commands are transferred in separate pipes and multiple commands are processed in
parallel.
Images retrieved from ASUS website
Features (4) – cont.

UASP Environments: to enable UASP function, following 3 conditions must be meet:
1. USB Host Controller
- ASUS USB 3.0 motherboards/notebooks with Intel/AMD chipset
- Gigabyte USB 3.0 motherboards with Intel/AMD chipset
- Apple’s latest generation of Macs (from 2012) that include the MacBook Pro, Macbook
Pro with Retina Display, MacBook Air, Mac Mini, and iMac all have USB 3.0 interfaces
that incorporate the UASP.
2. Driver
Native support for UASP
- Microsoft: Windows 8
- Apple: OS X 10.8 or above
3. USB Device Support
UASP Peripheral Devices:
- USB 3.0 Enclosure (Transcend: JDM500/520/720/420 enclosures)
- External SSD (Transcend: ESD400K)
Features (4) – cont.
UASP support
- Performance is enhanced especially in 4K QD32 performance (random read/write).
- Good for running operating systems, games, media, programs directly from ESD400K.
ESD400K on USB 3.0
ESD400K on USB 3.0 + UASP
Tested with 1TB ESD400K
Features (5)
One Touch Auto-Backup Button
Free software downloads of Transcend Elite & RecoveRx

Backup/Synchronize all important files in
PC and Mac.
Compared to USB HDD and UFD (1)
ESD400 vs. Portable HDD:
- Much smaller
- Much lighter
- Much faster
- More reliable
- More durable
ESD400 vs. USB Flash Drives:
- Much faster
Especially when running programs directly from the drive.
- More reliable
MLC Flash (USB Flash Drives mostly use low-endurance TLC )
- More capacities
Up to 1TB (USB Flash Drives support up to 256GB*)
*Above 256GB is very rare. Only Kingston provides.
Compared to USB HDD and UFD (2)
2.5” Portable HDD
ESD400K
JetFlash
Dimension (mm)
About 131.8 × 80.8 × 19.0
92 x 62 x 10.5
About 63.6 x 21.2 x 10.6
Available capacities
on market
512GB /
1 / 2TB
128 / 256 / 512GB /
1TB
8~256GB
512GB~1TB (rare)
Performance
(Read/Write)
Normal
Fastest
Up to 110MB/s
Up to 410/380MB/s
Product Image
Note
Ideal for high-capacity demand Ideal for high-capacity demand
with normal performance
with high performance
Fast
TLC: Up to 90/45 MB/s
MLC: Up to 210/140 MB/s
Ideal for medium to lowcapacity demand
(<=128GB)
Packaging
Package contents:
ESD400
USB 3.0 Cable
Travel Pouch
Quick Start
Guide
Warranty
Card
Current Competition (1)
Transcend
ESD400
Size (mm)
Seagate
Lacie
Rugged SSD
Oyen Digital
Backup Plus Fast
Lacie
Porsche Design
92 x 62 x 10.5
113.5 x 76 x 9.6
128 x 79 x 11
140 x 89 x 24
124 x 74 x 12
Capacity
128 / 256 / 512GB
1TB
256GB
120 GB
120 / 256 GB
120 / 240 / 480GB
1TB
Read/Write
Performance
Up to 410 MB/s
Up to 380 MB/s
Up to 430MB/s
Up to 400MB/s
Up to 385MB/s
Up to 572MB/s
Interface
USB 3.0
USB 3.0
USB 3.0
USB 3.0 /
Thunderbolt
USB 3.0
UASP support
Yes
N/A
N/A
N/A
Yes
Extra Features
One Touch
Backup, pouch,
software
Backup software
Designed
especially for Mac
Extra rugged,
Software
Backup software
Warranty
3-year
3-year
2-year
2-year
3-year
U32 Shadow
Product
*All prices taken from major U.S. online retailers as of 06-09-2014
Current Competition (2)
Transcend
ESD400
Team
Integral
MyDigitalSSD
Verbatim
PD200
Portable SSD
PocketVault
Store’n go
Size (mm)
92 x 62 x 10.5
93 x 53.8 x 8.6
92 x 54 x 9
93 x 53 x 8
120 x 56 x 10
Capacity
128 / 256 / 512GB
1TB
64 / 128 / 256 GB
128 / 256 / 512GB
1TB
64 / 128 / 256 /
512GB / 1TB
128 / 256 GB
Read/Write
Performance
Up to 410 MB/s
Up to 380 MB/s
Up to 250MB/s
Up to 100MB/s
Up to 230MB/s
Up to 140MB/s
Up to 280MB/s
Up to 175MB/s
Up to 190MB/s
Up to 95MB/s
Interface
USB 3.0
USB 3.0
USB 3.0
USB 3.0
USB 3.0
UASP support
Yes
N/A
N/A
Yes
N/A
Extra Features
One Touch
Backup, pouch,
software
Anti-slip
--
Disk encryption
software
Pouch & software
Warranty
3-year
3-year
2-year
1-year
2-year
Product
*All prices taken from major U.S. online retailers as of 06-09-2014
Thank you