Take a look at our
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
ThinkPads.com HOME PAGE
For those who might want to contribute to the blog, start here: Editors Alley Topic
Then contact Bill with a Private Message
Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
-
- Freshman Member
- Posts: 69
- Joined: Mon Mar 26, 2012 4:51 am
- Location: Virginia
Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
Has anyone seen these Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) floating around for sale,
https://www.amazon.com/Transcend-Expres ... op?ie=UTF8
apparently they tap the pci-e bus and are much faster than the internal SDXC readers on the laptops. Admins if you feel this will get more visibility in from another section of the forum feel free to move it.
https://www.amazon.com/Transcend-Expres ... op?ie=UTF8
apparently they tap the pci-e bus and are much faster than the internal SDXC readers on the laptops. Admins if you feel this will get more visibility in from another section of the forum feel free to move it.
-
- Senior ThinkPadder
- Posts: 2235
- Joined: Thu Jul 30, 2015 11:29 pm
- Location: Boston, Massachusetts
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
I can confirm the speed of my T500's reader is too slow for SDHC. 10mbps read / write is alright for a little 4GB SD, but for large files on an SDHC card it's just stupid. An SDHC to USB 2.0 adapter is 2 times faster than the internal reader.
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
Depends on which laptop. I believe the ones on **20 series and newer are SDXC/UHS-1 capable; previous generations are not.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
-
- Freshman Member
- Posts: 69
- Joined: Mon Mar 26, 2012 4:51 am
- Location: Virginia
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
I know the x220's are SDXC capable, but I don't think they can achieve UHS-1 speeds since the reader is connected to the USB 2.0 bus?dr_st wrote:Depends on which laptop. I believe the ones on **20 series and newer are SDXC/UHS-1 capable; previous generations are not.
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
The reader is connected to PCIe bus, and can achieve UHS-1 speeds. Confirmed be my personally.
http://forum.thinkpads.com/viewtopic.ph ... 73#p728124
I don't recall any Thinkpad where the reader is connected to USB bus. Even before PCIe they were using PCI (e.g. X61).
http://forum.thinkpads.com/viewtopic.ph ... 73#p728124
I don't recall any Thinkpad where the reader is connected to USB bus. Even before PCIe they were using PCI (e.g. X61).
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
-
- Freshman Member
- Posts: 69
- Joined: Mon Mar 26, 2012 4:51 am
- Location: Virginia
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
Hm, thanks for the correction, I wonder why read speeds are so slow tho.dr_st wrote:The reader is connected to PCIe bus, and can achieve UHS-1 speeds. Confirmed be my personally.
http://forum.thinkpads.com/viewtopic.ph ... 73#p728124
I don't recall any Thinkpad where the reader is connected to USB bus. Even before PCIe they were using PCI (e.g. X61).
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
In my tests they were not slow at all...
As far as I can see, you still did not mention things like what laptop model you are using, and what SD card model. This is important information, you know.
As far as I can see, you still did not mention things like what laptop model you are using, and what SD card model. This is important information, you know.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
-
- Freshman Member
- Posts: 69
- Joined: Mon Mar 26, 2012 4:51 am
- Location: Virginia
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
Whoops, I meant to say write speeds were slower than the external readers, I have a x220t btw, still be kinda nice to find that transcend reader, it sits flush and so do the SD cards, a rare find apparently, and will still be useful as SDXC is planned to support 2TB capacities eventually.
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
The actual read/write speeds depend on the SD controller itself. As you can see, read speeds of the built-in controllers were comparable to the external USB 3.0 reader, but write speeds were slower. Without knowing which chip is in that TS-RDF1, and without someone posting verified numbers, it's hard to know how fast it will be. I agree it would be nice to obtain one, for testing.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
-
- Freshman Member
- Posts: 69
- Joined: Mon Mar 26, 2012 4:51 am
- Location: Virginia
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
So why do you think the write speeds on the internal x220 SD port are slower than the external ones?
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
I don't know.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
-
- Senior Member
- Posts: 546
- Joined: Sun Jan 24, 2010 5:32 pm
- Location: USA : Illinois : Chicago
Re: Transcend TS-RDF1 (SDIO 3 host controller ExpressCard)?
ThinkPad X201, X201 Tablet, X201s: 0bda:0159 bcdDevice 58.88.dr_st wrote:I don't recall any Thinkpad where the reader is connected to USB bus.
SD 2 (marketed as 'SDHC') is "planned to support" 2 Tio "capacities". 'SDXC' is just a marketing word, means "exFAT filesystem". 'SDXC' is not about hardware. 'SDHC' means "storage addressable up to 32-bit (4294967296) × 512 octet = 2 Tio".Digitalhorizons wrote:SDXC is planned to support 2TB capacities eventually.
JMicron JMB389, 74 Mo/s read (Hans-Jürgen Reggel demonstrated)dr_st wrote:Without knowing which chip is in that TS-RDF1, and without someone posting verified numbers
Re: Transcend Express Card Reader for SD/SDHC/SDXC/UHS-1 (TS-RDF1) ?
74? I saw 70.81 as the highest in that table. Maybe I missed something? In any case, the write speeds are pretty poor. I don't if it's the cards, or the reader, but so far I see nothing to suggest it offers any advantage over the UHS-I capable built-in readers in Sandy Bridge / Ivy Bridge Thinkpads.automobus wrote:JMicron JMB389, 74 Mo/s read (Hans-Jürgen Reggel demonstrated)
Interesting and surprising, considering that the T410 has a PCIe reader. Do you know about X200?automobus wrote:ThinkPad X201, X201 Tablet, X201s: 0bda:0159 bcdDevice 58.88.
Thinkpad 25 (20K7), T490 (20N3), Yoga 14 (20FY), T430s (IPS FHD + Classic Keyboard), X220 4291-4BG
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
X61 7673-V2V, T60 2007-QPG, T42 2373-F7G, X32 (IPS Screen), A31p w/ Ultrabay Numpad
-
- Senior Member
- Posts: 546
- Joined: Sun Jan 24, 2010 5:32 pm
- Location: USA : Illinois : Chicago
Re: Transcend TS-RDF1 (SDIO 3 host controller ExpressCard)?
Hans-Jürgen Reggel's use of 'MB/s' means 'Mio/s'. 70.81 Mio/s × 1.048576 = 74.25 Mo/s.dr_st wrote:74? I saw 70.81
> write speeds are pretty poor. I don't if it's the cards, or the reader
It's cards and year 2011. On The River, a 2011 review mentions '90MB/sec read' and a 2012 review mentions 'writing at about 65MB/s'.
> Do you know about X200?
I do not know first-hand. I searched WWW and conclude, it is USB: 05ca:1880 bcdDevice 0.01.
-
- Similar Topics
- Replies
- Views
- Last post
-
-
x230 Wi-Fi card replacement and external antenna
by Teddy98 » Sat Oct 21, 2023 9:39 am » in ThinkPad X230-X280 / X390 Series - 5 Replies
- 3036 Views
-
Last post by Qing Dao
Sat Dec 16, 2023 9:59 am
-
-
-
Wi-Fi card recommendation for X61
by karotlopj » Thu Dec 14, 2023 4:26 am » in Thinkpad X60/X61 Series incl. Tablets - 14 Replies
- 16663 Views
-
Last post by axur-delmeria
Tue Jan 23, 2024 6:12 am
-
-
-
WWAN 4g / LTE card for T420
by koden » Fri Dec 22, 2023 8:24 am » in ThinkPad T400/T410/T420 and T500/T510/T520 Series - 0 Replies
- 1323 Views
-
Last post by koden
Fri Dec 22, 2023 8:24 am
-
-
-
Wifi Card upgrade suggestions?
by babysheegoth » Thu Jan 11, 2024 1:32 pm » in ThinkPad T60/T61 Series - 11 Replies
- 4919 Views
-
Last post by axur-delmeria
Sun Feb 11, 2024 11:47 pm
-
Who is online
Users browsing this forum: No registered users and 15 guests