MSA370 – SATA III 6Gb/s mSATA
SSD
Features

RoHS compliant

Advanced Global Wear-Leveling and Block
management for reliability

Built-in ECC (Error Correction Code) functionality
These devices feature cutting-edge technology to

Features a DDR3 DRAM Cache
enhance product life and data retention. MSA370 is

Supports Advanced Garbage Collection
designed specifically for various applications, such as

Supports Enhanced S.M.A.R.T. function
Ultrabooks, industrial PCs, vehicle PCs and road

Power Shield to prevent data loss in the event of a
sudden power outage

Supports partial and slumber mode

Supports Security Command

Supports DevSleep mode

Supports Hardware Purge and Hardware Write Protect
(Optional)
- Supports Trim and NCQ command

Supports Transcend SSD Scope Pro (Optional)
- Compliant with JEDEC MO-300A

Real time full drive encryption with Advanced
Encryption Standard (AES) (Optional)
Transcend MSA370 series are mSATA Solid State
Drives (SSDs) with high performance and quality
Flash Memory assembled on a printed circuit board.
surveillance recording.
- Power Supply: 3.3V±5%
- Fully compatible with devices and OS that support the
SATA III 6.0Gb/s standard
- Non-volatile Flash Memory for outstanding data
retention
Specifications
Physical Specification
Form Factor
MO-300A
Storage Capacities
16 to 512GB
Dimensions
Length
50.8  0.15 mm
1.175  0.006 inch
Width
29.85  0.15 mm
2.000  0.006 inch
Height
Max 4.85 mm
Max 0.111 inch
Input Voltage
3.3V  5%
Weight
8g
Connector
PCI Express Mini Card Connector
Environmental Specifications
Operating Temperature
0 ℃ to 70 ℃
Storage Temperature
-40 ℃ to 85 ℃
Humidity
Operating
0% to 95% (Non-condensing)
Non-Operating
0% to 95% (Non-condensing)
Performance
ATTO
CrystalDiskMark
IOMeter
IOPS
Random Read
(4KB QD32)
***
IOPS
Random Write
(4KB QD32)
***
20
10K
5K
80
40
20K
10K
80
160
80
40K
20K
540
160
280
160
70K
40K
320
530
320
300
300
75K
70K
470
520
470
300
310
70K
75K
Model P/N
Max
Read
*
Max
Write
*
Sequential Sequential Random Read Random Write
Read
Write
(4KB QD32)
(4KB QD32)
**
**
**
**
TS16GMSA370
110
20
110
20
40
TS32GMSA370
230
40
230
40
TS64GMSA370
450
80
440
TS128GMSA370
550
160
TS256GMSA370
550
TS512GMSA370
570
Note: Maximum transfer speed recorded
*25 °C, test on ASUS P8Z68-M PRO, 4GB, Windows® 7 Professional with AHCI mode, benchmark utility ATTO (version 2.41), unit MB/s
**25 °C, test on ASUS P8Z68-M PRO, 4GB, Windows® 7 Professional with AHCI mode, benchmark utility CrystalDiskMark (version 3.0.1), copied file 1000MB, unit
MB/s
***25 °C, test on ASUS P8Z68-M PRO, 4GB, Windows® 7 Professional with AHCI mode, benchmark utility IOmeter2006 with 4K file size and queue depth of 32,
unit IOPs
****The recorded performance is obtained while the SSD is not operating as an OS disk
Actual Capacity
Model P/N
User Max. LBA
Cylinder
Head
Sector
TS16GMSA370
31,277,232
16,383
16
63
TS32GMSA370
62,533,296
16,383
16
63
TS64GMSA370
125,045,424
16,383
16
63
TS128GMSA370
250,069,680
16,383
16
63
TS256GMSA370
500,118,192
16,383
16
63
TS512GMSA370
1,000,215,216
16,383
16
63
Power Consumption
3.3V  5%
Input Voltage
Model P/N / Power Consumption
TS16GMSA370
TS32GMSA370
TS64GMSA370
TS128GMSA370
TS256GMSA370
TS512GMSA370
Average (mA)
Max Read
165
Max Write
170
Idle
95
Max Read
195
Max Write
195
Idle
95
Max Read
260
Max Write
385
Idle
95
Max Read
265
Max Write
390
Idle
95
Max Read
290
Max Write
545
Idle
95
Max Read
300
Max Write
770
Idle
95
*Tested with IOmeter running sequential reads/writes and idle mode
Reliability
Data Reliability
Supports BCH ECC 60 bit per 1024 byte
MTBF
1,500,000 hours
Endurance (TeraBytes Written)*
16G
25TB
32G
45TB
64G
80TB
128G
150TB
256G
280TB
512G
550TB
o
*Note: Based on JEDEC JESD218A & 219A standard, Client Application Class with the following scenario: Active use: 40 C, 8hrs/day; Retention use: 30oC
Vibration
Operating
3.0G, 5 - 800Hz
Non-Operating
5.0G, 5 - 800Hz
Reference to IEC 60068-2-6 Testing procedures; Operating-Sine wave, 5-800Hz/1 oct., 1.5mm, 3g, 0.5 hr./axis, total 1.5 hrs.
Shock
Operating
1500G, 0.5ms
Non-Operating
1500G, 0.5ms
Reference to IEC 60068-2-27 Testing procedures; Operating-Half-sine wave, 1500G, 0.5ms, 3 times/dir., total 18 times.
Regulations
Compliance
CE, FCC and BSMI
Package Dimensions
The figure below illustrates the Transcend mSATA Solid State Disk product. All dimensions are in mm.
Pin Assignments
Pin No.
Pin Name
Pin No.
Pin Name
01
NC
02
3.3V
03
NC
04
GND
05
NC
06
NC
07
NC
08
NC
09
GND
10
NC
11
NC
12
NC
13
NC
14
NC
15
GND
16
NC
17
NC
18
GND
19
NC
20
NC
21
GND
22
NC
23
TX+
24
3.3V
25
TX-
26
GND
27
GND
28
NC
29
GND
30
NC
31
RX-
32
NC
33
RX+
34
GND
35
GND
36
NC
37
GND
38
NC
39
3.3V
40
GND
41
3.3V
42
NC
43
NC
44
DEVSLP
45
NC
46
NC
47
NC
48
NC
49
DAS/DSS*
50
GND
51
Presence Detection**
52
3.3V
* Device Activity Signal / Disable Staggered Spin-up
** Connect to GND internally
Pin Layout
Block Diagram
Features

Global Wear Leveling – Advanced algorithms to enhance wear-leveling efficiency
Global wear leveling ensures every block has an even erase count. By ensuring all spare blocks in the SSD’s flash chips
are managed in a single pool, each block can then have an even erase count. This helps to extend the lifespan of a SSD
and to provide the best possible endurance.
There are three main processes in global wear -leveling:
(1) Record the block erase count and save this in the wear-leveling table.
(2) Finds the static-block and saves this in the wear-leveling pointer.
(3) Checks the erase count when a block is pulled from the pool of spare blocks. If the erased block count is larger than
the Wear Count (WEARCNT), then the static blocks are leveraged against the over-count blocks.

ECC Algorithm
The controller uses a BCH 40 Bit ECC algorithm per 1024 bytes depending on the structure of the flash. BCH40 may
correct up to 40 random bit errors within 1024 data bytes. With the help of BCH40 ECC, the endurance of the
Transcend SSD is greatly improved.

Bad Block Management
When the flash encounters an ECC, program or erase failure, the controller will mark the block as a bad block to
prevent use of this block and cause data loss in the future.

Advanced Garbage Collection
Transcend’s Garbage Collection mechanism improves SSD performance. Advanced Garbage Collection can efficiently
improve memory management to ensure stable SSD performance. Transcend’s advanced flash management can
maintain the drive’s high performance even after an extended operating time.

Enhanced S.M.A.R.T. function
Transcend’s SSDs support the innovative S.M.A.R.T. command (Self-Monitoring, Analysis, and Reporting Technology)
which allows users to evaluate the health status of their SSD efficiently.

Advanced Power Shield
The controller uses an internal intelligent power shield circuit to prevent SSD from damage in the event of a sudden
power outage. The SSD’s internal power detection mechanism can monitor power provided by host. Should a sudden
power outage occur, the SSD can execute the advanced power shield mechanism to protect data in the SSD.

Hardware Purge and Hardware Write Protect
The SSDs have optional features such as hardware trigger for quick data erase and write protection. These features
may be enabled by simply connecting a switch to the designated pins.

StaticDataRefresh Technology
Normally, the ECC engine corrections take place without affecting normal host operations. Over time, the number of
bit errors accumulated in the read transaction exceeds the correcting capacity of the ECC engine, which results in
corrupted data being sent to the host. To prevent this, the controller monitors the bit error levels during each read
operation; when the number of bit errors reaches the preset threshold value, the controller automatically performs a
data refresh to “restore” the correct charge levels in the cell. Implementation of StaticDataRefresh Technology
reinstates the data to its original, error-free state, and hence, lengths the data’s lifespan.
ATA Command Register
This table and the following paragraphs summarize the ATA command set.
Command Table
Support ATA/ATAPI Command
General Feature Set
EXECUTE DIAGNOSTICS
FLUSH CACHE
IDENTIFY DEVICE
Initialize Drive Parameters
READ DMA
READ LOG Ext
READ MULTIPLE
READ SECTOR(S)
READ VERIFY SECTOR(S)
SET FEATURES
SET MULTIPLE MODE
WRITE DMA
WRITE MULTIPLE
WRITE SECTOR(S)
NOP
READ BUFFER
WRITE BUFFER
Power Management Feature Set
CHECK POWER MODE
IDLE
IDLE IMMEDIATE
SLEEP
STANDBY
STANDBY IMMEDIATE
Security Mode Feature Set
SECURITY SET PASSWORD
SECURITY UNLOCK
SECURITY ERASE PREPARE
SECURITY ERASE UNIT
SECURITY FREEZE LOCK
SECURITY DISABLE PASSWORD
SMART Feature Set
SMART Disable Operations
SMART Enable/Disable Autosave
SMART Enable Operations
SMART Execute Off-Line Immediate
SMART Read LOG
SMART Read Data
SMART Read THRESHOLD
SMART Return Status
SMART SAVE ATTRIBUTE VALUES
SMART WRITE LOG
Host Protected Area Feature Set
Code
Protocol
90h
E7h
ECh
91h
C8h
2Fh
C4h
20h
40h or 41h
EFh
C6h
Cah
C5h
30h
00h
E4h
E8h
Device diagnostic
Non-data
PIO data-In
Non-data
DMA
PIO data-In
PIO data-In
PIO data-In
Non-data
Non-data
Non-data
DMA
PIO data-out
PIO data-out
Non-data
PIO data-In
PIO data-out
E5h or 98h
E3h or 97h
E1h or 95h
E6h or 99h
E2h or 96h
E0h or 94h
Non-data
Non-data
Non-data
Non-data
Non-data
Non-data
F1h
F2h
F3h
F4h
F5h
F6h
PIO data-out
PIO data-out
Non-data
PIO data-out
Non-data
PIO data-out
B0h
B0h
B0h
B0h
B0h
B0h
B0h
B0h
B0h
B0h
Non-data
Non-data
Non-data
Non-data
PIO data-In
PIO data-In
PIO data-In
Non-data
Non-data
PIO data-out
Read Native Max Address
Set Max Address
Set Max Set Password
Set Max Lock
Set Max Freeze Lock
Set Max Unlock
48-bit Address Feature Set
Flush Cache Ext
Read Sector(s) Ext
Read DMA Ext
Read Multiple Ext
Read Native Max Address Ext
Read Verify Sector(s) Ext
Set Max Address Ext
Write DMA Ext
Write Multiple Ext
Write Sector(s) Ext
NCQ Feature Set
Read FPDMA Queued
Write FPDMA Queued
Other
Data Set Management
SEEK
F8h
F9h
F9h
F9h
F9h
F9h
Non-data
Non-data
PIO data-out
Non-data
Non-data
PIO data-out
Eah
24h
25h
29h
27h
42h
37h
35h
39h
34h
Non-data
PIO data-in
DMA
PIO data-in
Non-data
Non-data
Non-data
DMA
PIO data-out
PIO data-out
60h
61h
DMA Queued
DMA Queued
06h
70h
DMA
Non-data
SMART Data Structure
BYTE
F/V
Description
0-1
X
Revision code
2-361
X
Vendor specific
362
V
Off-line data collection status
363
X
Self-test execution status byte
364-365
V
Total time in seconds to complete off-line data collection activity
366
X
Vendor specific
367
F
Off-line data collection capability
368-369
F
370
F
SMART capability
Error logging capability
7-1 Reserved
0 1=Device error logging supported
371
X
Vendor specific
372
F
Short self-test routine recommended polling time (in minutes)
373
F
Extended self-test routine recommended polling time (in minutes)
374
F
Conveyance self-test routine recommended polling time (in minutes)
375-385
R
Reserved
386-395
F
Firmware Version/Date Code
396-397
F
Reserved
398-399
V
Reserved
400-406
V
TS6500
407-415
X
Vendor specific
416
F
Reserved
417
F
Program/write the strong page only
418-419
V
Number of spare block
420-423
V
Average Erase Count
424-510
X
Vendor specific
511
V
Data structure checksum
F = content (byte) is fixed and does not change.
V= content (byte) is variable and may change depending on the state of the device or the commands executed by the
device.
X= content (byte) is vendor specific and may be fixed or variable.
R= content (byte) is reserved and shall be zero.
SMART Attributes
The following table shows the vendor specific data in byte 2 to 361 of the 512-byte SMART data
Attribute
Raw Attribute Value
ID (hex)
Attribute Name
01
MSB
00
00
00
00
00
00
Read Error Rate
05
LSB
MSB
00
00
00
00
00
Reallocated sectors count
09
LSB
-
-
MSB
00
00
00
Power-on hours
0C
LSB
-
-
MSB
00
00
00
Power Cycle Count
A0
LSB
-
-
MSB
00
00
00
Uncorrectable sectors count when read/write
A1
LSB
MSB
00
00
00
00
00
Number of valid spare blocks
A3
LSB
MSB
00
00
00
00
00
Number of initial invalid blocks
A4
LSB
-
-
MSB
00
00
00
Total erase count
A5
LSB
-
-
MSB
00
00
00
Maximum erase count
A6
LSB
-
-
MSB
00
00
00
Minimum erase count
A7
LSB
-
-
MSB
00
00
00
Average erase count
A8
LSB
-
-
MSB
00
00
00
Max erase count of spec
A9
LSB
-
-
MSB
00
00
00
Remain Life (percentage)
AF
LSB
-
-
MSB
00
00
00
Program fail count in worst die
B0
LSB
MSB
00
00
00
00
00
Erase fail count in worst die
B1
LSB
-
-
MSB
00
00
00
Total wear level count
B2
LSB
MSB
00
00
00
00
00
Runtime invalid block count
B5
LSB
-
-
MSB
00
00
00
Total program fail count
B6
LSB
MSB
00
00
00
00
00
Total erase fail count
BB
LSB
-
-
MSB
00
00
00
Uncorrectable error count
C0
LSB
MSB
00
00
00
00
00
Power-off retract Count
C2
MSB
00
00
00
00
00
00
Controlled temperature
C3
LSB
-
-
MSB
00
00
00
Hardware ECC recovered
C4
LSB
-
-
MSB
00
00
00
Reallocation event count
C6
LSB
-
-
MSB
00
00
00
Uncorrectable error count off-line
C7
LSB
MSB
00
00
00
00
00
Ultra DMA CRC Error Count
E1
LSB
-
-
-
-
-
MSB
E8
LSB
MSB
00
00
00
00
00
F1
LSB
-
-
-
-
-
MSB
Total LBA written (each write unit = 32MB)
F2
LSB
-
-
-
-
-
MSB
Total LBA read (each read unit = 32MB)
F5
LSB
-
-
-
-
-
MSB
Flash write sector count
Total LBAs written (each write unit = 32MB
Available reserved space
Ordering Information
TS XG MSA 3 70
Controller
TS6500
Transcend Product
3 = MLC
Capacity
16GB to 512GB
mSATA Solid State Drive
The above technical information is based on industry standard data and has been tested to be reliable. However, Transcend makes no
warranty, either expressed or implied, as to its accuracy and assumes no liability in connection with the use of this product. Transcend
reserves the right to make changes to the specifications at any time without prior notice.
CHINA
Shanghai:
E-mail: sales-cn@transcendchina.com
Beijing:
E-mail: sales-cn@transcendchina.com
Shenzhen:
E-mail:sales-cn@transcendchina.com
http://cn.transcend-info.com
TAIWAN
GERMANY
No.70, XingZhong Rd., NeiHu Dist., Taipei, Taiwan, R.O.C
TEL +886-2-2792-8000
Fax +886-2-2793-2222
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http://tw.transcend-info.com
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http://de.transcend-info.com
USA
JAPAN
Los Angeles:
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Maryland:
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Florida:
E-mail:sales-us@transcend-info.com
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HONG KONG
E-mail: sales-hk@transcend-info.com
http://hk.transcend-info.com
THE NETHERLANDS
E-mail: sales-nl@transcend-info.com
http://nl.transcend-info.com
United Kingdom
E-mail: sales-uk@transcend-info.com
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KOREA
E-mail: sales-kr@transcend-info.com
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Version
Date
Revision History
Modification Content
V1.0
2014/06/04 Initial Release
V1.1
2014/08/04 Improve TS512GMSA370 performance
V1.2
2015/01/06 Grammar correction, Update performance, SMART attributes, Data Reliability
V1.3
2015/01/15 Dimensions correction