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Guts of a 16GB Transcend SLC SSD


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#1 FastMHz

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Posted 27 March 2013 - 02:37 PM

I scored this industrial grade SSD on eBay and just had to see what's inside.

See Attached File  TranscendSLC_TS16GSSD25S-S.pdf   1.62MB   12 downloads for high-res photos of the internals.

It would appear that 16 Samsung 1 gig NAND chips are used...with zero over-provisioning. I would presume this is because SLC does just find without a bin of extra bytes to draw from, as compared to MLC. The controller is a jMicron JMF602.

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Gaming: Phenom II 955/16gb RAM/SSD/VelociRaptor/Radeon 7950
Retro: K6-2 550/256mb RAM/160gb HDD/CompactFlash/3DFX/ATI AIW Pro/SB16/DB50XG
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#2 rugger

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Posted 17 April 2013 - 12:07 AM

Yes it does have overprovisioning

Based on LBA count of 31,277,056 sectors the drive has 16,013,852,672 bytes of user accessable storage.

16GB of NAND is 17,179,869,184 bytes. That means that the drive has 1,166,016,512 bytes of overprovisoning, (or about 6.7%)

This is plenty for a small SLC based SSD.

However, the JMF602 controller is quite awful, I wouldn't have bothered buying it.

#3 FastMHz

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Posted 17 April 2013 - 09:01 AM

I agree, the controller is crap. But for my particular purpose, it is still much better than a platter drive.

Good to know about the overprovisioning bit too.

EDIT: And I only paid $22 :-)

Edited by FastMHz, 17 April 2013 - 09:02 AM.

Production: Vishera 8350/32gb RAM/Dual SSD/VelociRaptor/Radeon 7750
Gaming: Phenom II 955/16gb RAM/SSD/VelociRaptor/Radeon 7950
Retro: K6-2 550/256mb RAM/160gb HDD/CompactFlash/3DFX/ATI AIW Pro/SB16/DB50XG
http://www.fastmhz.com

#4 continuum

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Posted 17 April 2013 - 07:05 PM

$22 for a JMicron JMF602 is about $21 too much. ;)

#5 FastMHz

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Posted 18 April 2013 - 11:20 AM

$22 for a JMicron JMF602 is about $21 too much. ;)


LOL you are funny. But the drive is working perfectly as the OS drive in my NAS :-)

Production: Vishera 8350/32gb RAM/Dual SSD/VelociRaptor/Radeon 7750
Gaming: Phenom II 955/16gb RAM/SSD/VelociRaptor/Radeon 7950
Retro: K6-2 550/256mb RAM/160gb HDD/CompactFlash/3DFX/ATI AIW Pro/SB16/DB50XG
http://www.fastmhz.com




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