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Has anyone heard of this brand?

http://www.amazon.com/Digital-Speed-1200X-Professional-Memory/dp/B007TM5DGI/ref=sr_1_1?s=electronics&ie=UTF8&qid=1375154070&sr=1-1&keywords=cf+card+1200x

the specs look amazing..   Komputerbay said that they might release a 1200x version as well.

I've just been testing my 128gb 1050x card and it's a real dud, I'm going to send it back. I can't get the Magic Lantern files on it so it won't work on its own, others are having that problem too, which means mine will only work on a 5D3 as I can run it off the SD card. Even that doesn't seem to want to work correctly as I can only get it working if I have ML files on the CF card too but it keeps asking me to format one of the cards. When I do get it running it's slower than my 64GB 1000x card which isn't even a very fast instance of that card. The 126GB 1050x hits about 77MB/s-82MB/s and my 64GB hits averages around 85MB/s. The thing is it will be going at say 80MB/s then suddenly skip a frame, I think the speed suddenly drops out as others have mentioned. So, it's either faulty, slow or both. I tried the 128GB 1000x before this and it was slow so I returned it but it at least didn't have these other problems. In the words of Kevin Sorbo - disappointed!

Sorry to hear that you are having the same problem as I am.. ya I would  be recording fine at one point then it would all of a sudden drop frame.  Others have suggested me to install the ML onto the CF card and run it off that as they said that worked for them... So I gave that a try... installed bootable version of ML on to the cf card and tried to boot it.  Had no luck, my 5DMK 3 didn't recognize it for some reason...  So I will be returning the card... still debating if i should exchange for a new one or just return it all together.

Ya I might have to exchange my card, we'll see what tech support says about my new tests on monday. 

I installed ML on a SD card and I use the CF card for recording. (CF card is formatted to exfat).   From my results, I feel that the card is acting really weird...random spikes in mb/s and when the card is in the middle of the recording of 128gb.. it would drop down to 4 mb/s...and go back up to 28 mb/s..... really weird... as those numbers aren't even the minimum mb/s in recording one frame at that resolution.   Hearing that you guys can record 1920x1080 continuous for 128gb without card warm up makes me feel that my card is gimped.

Thanks for sharing.

 UPDATE:

So after talking to the tech support, they have advised me to keep the drop frames option off and allow the camera to record full 128gb.

Here are some stills taken through out the process.

First Drop Frame at 3383 (1.5GB)  - 93.3MB/S

At 12788 frame (44GB) the MB/S dropped alot (4.8 mb/s) but still only at 28 drop frames...(Weird)

At 32641 frame (112GB) the MB/S came back up a little (23.9 mb/s) and the drop frame is still at 28...(Very Weird)

At 35161 frame (121GB) the MB/S was at (28.5mb/s) and the drop frames went up to 299.
Bench Mark Test:

Bench Mark test, after recording the 128gb and deleting the file. (The card is very warm at this point.)

Results were very disappointing...

Another Bench mark test after dumping 2 more 50GB recordings.  This is as warm as it gets...

Results are still no good....  To be honest I don't believe in a product which requires you to WARM up the card before shooting.....
Other user's Bench Mark:

Here is a fellow KomputerBay 128gb 1050x card user.  He said he bench-marked this from a cold boot..(He even had Global Draw: ON!!!)

I will consult with KomputerBay with my results as they said my card does not have a problem....

More updates coming up.

Awesome Stuff!! keep up the good work.

Hi Nate,
Thanks for sharing your results, they look amazing!  That is how all 1050x Komputerbay cards should work. No warm up required and just start recording.

May I know what all your settings are so that I can copy your settings and see if I can get my card to work like that.

Thanks,

I made a video on how I'm testing the 128gb 1050x card.
https://vimeo.com/71073703

Komputerbay tech support ran through a CrytalDiskMark test with me and we both got similar results 129mb read and 96mb write, from a 4000mb test.  They said that my card should be able to do 1920x1080 @ 24fps continuous no problem...  but I'm still getting drop frames.

He also suggested that I clear my buffer for my camera before recording.... (how do I clear my buffer..besides waiting for the orange light to stop blinking.)  (Side note KomputerBay was very quick in responding to my questions.  Thumbs up to their Tech Support!!)

Anyone got suggestions for the camera settings?

Woh it can do 1920x1080 @ 30fps for the full 32gb?  Hum if that's the case then the 64gb might be worth it. (dont know why but it seems that 32gb and 128gb aren't as good as 64gb even at the same 1000x.)

Any one else have 64gb 1000x cards that can do 1920x1080 @30 without any drop frames?

[New KomputerBay 1050x 128GB Card.]

I just finished doing some testing on my New KomputerBay 1050x 128GB Card.

A little disappointed as I have read others having flawless results. I could not obtain consistent Continous results at 1920x1080 24fps with global draw on or off. (Drop frames would occur randomly, some times 2 frames into the recording or some times 1000 frames.)

Here are my settings.

- Formatted CF card to Exfat
- Running ML off 32gb SD Card 95mb speed.
- Using ML v2.3 2013-July-17- 5D3 1.13
- Warmed up the card with 1GB files
- Tried recording at 1920x1080 24fps
- Tried Global Draw on & off
- Tried Memory hack On & Off

Here are some results which I got.

1920x1080 24fps Global Draw OFF Test 1



1920x1080 24fps Global Draw OFF Test 2



1920x1080 24fps Global Draw ON Test 1



The results were a downer, and the card was not consistent in performance at all.  (As shown above the results from Global Draw On is actually better than Global Off....weird...)   (Some times it would give me the green "Good to go" record setting approval at the bottom along with all the record dimensions and mbs per frame at 1920x1080, but when I record it would fail after few hundred frames.  So times it even fails at 3 fps... I have never gotten past 3000 frames at 1920x1080 with this card.)  I consider this as a fail in recording 1920x1080 continuous.

Finding a stable setting for this card.

Bumping down the Ratio:

I started to bump the ratio down from 16:9 to 1.85:1 and so on until 2.35:1

Unfortunately for me it was only some what stable at 2.35:1 .   Recorded at 1920*818  18049 frames. (that is 47.5GB) (Consistently recored 70mb per frame.) (I consider this to be a pass as I don't shoot documentaries...)

Bumping down the resolution:

After testing the ratio setting I put it back at 1920x1080 and started to test the resolution. 1920x1080 to 1856x1044 to 1728x972

Once again it was only some what stable at 1728x972 Recorded at 1728*972  18278 frames. (that is 50GB) (Consistently recored 69.8mb per frames)

(I consider this to be a pass as I don't shoot documentaries...)

Over View:

Over all the card itself for normal use is excellent, It can handle 6fps burst raw + jpg easily as well as recording video in h264.  As for shooting raw video I was hoping it could do stable continuous 1920x1080 @ 24fps and maybe even 1920x1080 @ 30fps. So I'm a disappointed that this card can not shoot at those settings.  I will look at the 64gb 1000x as a temp solution while I wait for their 1200x version to be release in  a month or so.

I hope the information helps and if anyone can recommend me proper settings to make this card work at 1920x1080 then please contact me.

(I would rather have this card work than to send it back.)

Alvin