Atoch C2S CFast to SSD Solution for Blackmagic URSA, URSA Mini, and URSA Mini Pro (4K & 4.6K)

Atoch C2S CFast to SSD Solution for Blackmagic URSA, URSA Mini, and URSA Mini Pro (4K & 4.6K)

Atoch C2S CFast to SSD Solution for Blackmagic URSA, URSA Mini, and URSA Mini Pro (4K & 4.6K)

Top seller

Now Viewing:

In Stock

Product Highlights

  • Supports the Blackmagic URSA & URSA Mini
  • Supports the URSA & URSA Mini 4K & 4.6K
  • Supports the URSA Mini Pro
  • Equipped with Dual 2.5" SATA Drive Bays
  • Connects via Wired CFast Card Adapters
  • Supports 4.6K RAW at 60 fps
  • Supports 3:1 & 4:1 Compression for 4.6K
  • Supports 3:1 Compression for 4K
  • Supports ProRes Resolutions/Frame Rates
  • Universal Power & Fanless Cooling
Show moreShow less

B&H $500 Gift Card Dash

Share for a chance to win a $500 B&H Gift Card!

Share on Twitter

Share a favorite product for chances to win one of eight $500 B&H Gift Cards!
1 new winner announced every Monday starting Nov 5th!
Limit 1 entry per day: Come back every day to increase your chance of winning.

Be sure to mention #BHWishList when you share!

Congrats to our winners so far:

Next winner: Dec 17th

James Z. (Wk 1)

Ralph H. (Wk 2)

Arturo M. (Wk 3)

Rich P. (Wk 4)

Valeria A. (Wk 5)

Sabrina B. (Wk 6)

Official Rules


NO PURCHASE IS NECESSARY TO ENTER OR WIN. The B&H $500.00 Gift Card Dash (the "Sweepstakes") is void where prohibited by law and is sponsored by B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 ("Sponsor"). It is not sponsored or endorsed by Facebook or Twitter in any way.

Entry Period/Methods of Entry. The Sweepstakes will run from on or about October 28, 2018 until on or about December 23, 2018 (the "Entry Period"). Entries received outside the Entry Period are void. Enter the Sweepstakes via either one of the following methods. (1) Share any product found on the B&H website (the "Website") on Facebook or Twitter via the dedicated links contained on the website using the hashtag #BHWishlist; or (2) Mail a postcard (postmarked during the Entry Period) containing your name, address, phone number, and email address, and indicate the subject(s), if any, about which you are interested in receiving future emails from B&H (e.g. photo, video, audio, computers, home theater, portable entertainment ) (optional) to: B&H $500.00 Gift Card Dash Sweepstakes, c/o B&H Foto & Electronics Corp., 440 Ninth Avenue, New York, NY 10001 (either option, an "Entry"). Entries must not, in the sole and absolute discretion of the Sponsor, contain obscene, provocative, defamatory, sexually explicit, or otherwise objectionable or inappropriate content. Entries deemed by Sponsor to be inappropriate will be disqualified. Entries owned by a third party, or the use of any trademarks, service marks, logos, brands, or products owned by a third party are not acceptable for entry into the Sweepstakes. Limit 1 entry per person, per day.

Winner Selection/Prizes/Odds. The B&H Social Team will randomly select a winner from among all eligible entries every Monday during the Entry Period, for a total eight (8) winners (each a "Winner"). Each Winner will receive a B&H Gift Card pre-valued in the amount of $500.00. No cash or other substitutions will be offered. Winner selection is in the sole and absolute discretion of the B&H Social Team. Any taxes are the sole responsibility of the winner. Winners will be notified and receive their prize at the email address associated with the account to which their Entry was posted or the email account provided with a mail-in entry. The odds of winning depend on the number of eligible entries received.

Identity of Winners/Eligible Participants. Winners will be identified by the email account associated with the Facebook or Twitter account from which their Entry was submitted or the email account provided with a mail-in entry. An email account holder shall mean the natural person assigned to such email account by the internet access or online service provider or other organization responsible for assigning email addresses for the domain associated with such email account. Any issues regarding the identity of a Winner shall be resolved by Sponsor in its sole discretion. The Sweepstakes is only open to residents of the United States that are at least eighteen (18) years of age on their entry date and is not open to employees of Sponsor, their immediate family, any person domiciled with such employees, or any affiliates or subsidiaries of Sponsor.

Entry Ownership/Entrant Agreements. Entrants retain full ownership and copyrights to their Submission. However, by entering the Sweepstakes entrants grant Sponsor permission to use their Entries for promotional purposes on their respective social media channels with proper credit. Entrants also agree: (a) to be bound by these Official B&H $500.00 Gift Card Dash Sweepstakes Rules; (b) that any claims related to this Sweepstakes shall be resolved individually without resort to any form of class action and that awards, shall be limited to actual out-of-pocket costs incurred in entering the Sweepstakes, and shall not include incidental or consequential damages or attorneys fees; and (c) that any actual or perceived ambiguities in these rules shall be interpreted by Sponsor in their sole discretion.

Limitation of Liability/Sponsor Modification/Cancellation Rights/ Choice of Law/ Venue/ Winners List. Sponsor is not responsible for incomplete entries or for failure to receive entries due to technical failures or human error of any kind. Winners agree that Sponsor will have no responsibility for losses or damage of any kind resulting from the acceptance, possession, or use of the prizes. Except where prohibited, participation in the Sweepstakes constitutes entrant's consent to the publication of his or her name by Sponsor in any media for commercial or promotional purposes without limitation or further compensation subject to Sponsor's respective Privacy Policies. Sponsor may modify or discontinue the Sweepstakes at any time and may disqualify from the Sweepstakes any person it determines, in its sole discretion, to have attempted to or actually tampered with or otherwise abused any aspect of the Sweepstakes. Entrants agree that in the unlikely event a dispute arises in connection with this Sweepstakes, it will be governed by the laws of the State of New York and heard exclusively in a court of applicable jurisdiction in the County and State of New York irrespective of any choice of law provisions to the contrary. To receive names of the winners by U.S. mail, please mail a self-addressed stamped envelope to: B&H Foto & Electronics Corp., Attn: B&H $500.00 Gift Card Dash Sweepstakes, 440 Ninth Avenue, New York, NY 10001. Any Winners List request must be received by B&H within one (1) year of the date the Sweepstakes is conducted.

Let us know how to reach you if you win!

Privacy 100% guaranteed; email address for contact purposes only


Already have a B&H account? Just log in tomorrow to enter again!

$0 VA Sales Tax Collected on This Item
Add to Wish List Item in Wish List

Atoch C2S overview

  • 1Description

The C2S CFast to SSD Solution from Atoch allows users of the 4K & 4.6K versions of the Blackmagic URSA and URSA Mini, as well as the URSA Mini Pro, to record footage captured by their camera directly onto SSDs, as compared to CFast cards. Operating as a "digital bulk loader," the C2S has two 2.5" / 9.5mm SATA drive bays, each of which is equipped with a wired CFast adapter that plugs directly into each of the CFast card slots on the URSA, URSA Mini, or URSA Mini Pro. Each 2.5" drive bay supports SSDs up to 2TB, for a total storage capacity of 4TB, or the equivalent of 16 x 256GB CFast cards. Not only will the C2S negate the need to carry around multiple CFast cards, users will also be able to swap out drive media less frequently, as larger capacity SSDs are a more cost-effective purchase than CFast cards.

In dual card mode, the C2S supports up to 4.6K RAW recording at 60 fps. In single card mode, the C2S is able to record compressed RAW video at any resolution at all available compression levels, which are 3:1 for the 4K sensor and both 3:1 and 4:1 for the 4.6K sensor, as well as all available resolutions and frame rates of Apple ProRes. Additionally, when used with Atoch's recommended SSDs, the C2S supports a greater maximum data rate than the 4.6K version of the URSA and URSA Mini are designed to output.

The Atoch C2S has helped to trim costs and streamline post-production workflows for many projects. This device is powered using the included D-Tap to DC cable and for those who wish to use 7mm SSDs within the C2S' 9.5mm drive bays, two SSD spacers are also included.

General Features

In-Camera SSD Control
Use your camera's user interface to format, record, and playback your footage just like you would with a CFast card. Even though CFast card sizes are limited, your URSA, URSA Mini, or URSA Mini Pro won't know the difference between your inserted SSDs and a CFast card inside the camera, even all the way up to 2TB
Universal Ergonomics
With a 0.25" threaded mount on the underside of the Atoch C2S, it can be mounted as easily as almost any field monitor or external recorder. And with the use of a magic arm, the Atoch C2S can be swung around to nearly any position around the camera for improved ease of use for virtually any shooting circumstance. No need to permanently make your camera longer or wider, possibly making your shooting experience unwieldy, or causing issues on a gimbal. With your choice of magic arm or ball mount, your Atoch C2S is configurable to your specific shooting style
Universal Power
The Atoch C2S takes 12-24V directly and Atoch supplies a D-Tap cable so users can connect it directly to their battery or battery plate; whether you use Gold Mount or V-Lock batteries, the Atoch C2S can be powered with ease. With an LED-verified power switch, users can also see when their Atoch C2S is functioning properly, and even switch it off to save power
Fanless Cooling
Designed with audio in mind, the Atoch C2S helps keep your SSDs cool by allowing natural air to pass over and under your drives. There is no need for any additional power drain from powering noisy fans
Secure Drive Grip
Inside of the Atoch C2S is a SATA connector which grips SSDs tightly and without risking damage to its pins. There is no need to worry about SSDs falling out or remounting them when they've been jostled or bumped on set. The Atoch C2S is well suited for run and gun productions
URSA Mini Pro
Both CFast ports on the URSA Mini Pro are compatible with the C2S using Western Digital Blue SSDs, SanDisk Ultra 3D DDSs (not SanDisk Ultra II), and Digistor Professional Video SSDs.
In the Box
Atoch C2S CFast to SSD Solution for Blackmagic URSA, URSA Mini, and URSA Mini Pro (4K & 4.6K)
  • 1 x D-Tap to DC Cable
  • 2 x SSD Spacers (7 to 9.5mm)
  • Lifetime Product Support & Troubleshooting
  • Limited 1-Year Warranty
  • Table of Contents
    • 1Description

    Atoch C2S specs

    Number of Drive Bays 2 x 2.5" / 9.5 mm
    Supported Memory Interface Standard SATA Solid-State Drives (SSDs)
    Supported SSDs SanDisk Extreme Pro, Samsung 850 Pro
    Maximum Supported SSD Capacity 2 TB
    Power 12-24 VDC
    Dimensions 3.5 x 4.3 x 2.0" / 8.9 x 10.8 x 5.1 cm
    Weight 11.7 oz / 331.7 g
    Packaging Info
    Package Weight 1.1 lb
    Box Dimensions (LxWxH) 5.8 x 5.4 x 5.1"

    Atoch C2S reviews

    C2S CFast to SSD Solution for Blackmagic URSA, URSA Mini, and URSA Mini Pro (4K & 4.6K) is rated 3.8 out of 5 by 17.
    Rated 5 out of 5 by from Works Awesome. Even with 4K RAW I've been a black magic cinema camera (2.5k) user for a few years and recently upgraded to the Ursa. I loved everything about the Ursa except for the cfast cards. So I was super excited to find the Atoch solution. It works perfectly. I've shot about 55 productions with it and never had an issue. I had a few questions about the best way to mount it on the camera and asked on their Facebook page for suggestions and they were very prompt answering. If you are ready for a pro level mount and the much cheaper price of SSDs this is the obvious choice!
    Date published: 2016-04-16
    Rated 5 out of 5 by from Fantastic Media Solution for URSA Mini 4.6 I just returned from NAB 2016 and had the privilege of using this unit for all of my coverage recording on my URSA Mini 4.6K. It was incredibly easy to mount onto my camera rig and use. Once you find a good mounting point for it, it does it's job and you forget it is even there. Any piece of gear I can plug in and leave to do it's thing without fussing with is a major bonus. I was able to record almost 500GB of 4K ProRes footage each day without ever needing to stop to offload media. I would not have been able to do this with my 128GB CFast cards. The build is solid and the SSDs fit in snugly, so there is no concern of having media become disengaged in the middle of a shot. It was easy to power off of an available D-tap port on my rig, all I had to do was switch it on and start shooting.
    Date published: 2016-04-23
    Rated 5 out of 5 by from Buy It! I have the first generation of this product. It works and it works great! I also bought BlueShape's P-Tap-to-USB power adapter for connection between battery and this device. This is a great $$ saver for the BMD Ursa Camera line because you record to 2.5 SSD Drives instead of using expensive C-Fast Cards. After you're done recording, just pop the drive out and into a 2.5 SATA to USB 3.0 Drive Dock (or better yet USB 3.1). Copy the ProRes or RAW files over to your editing PC or Mac quickly and painlessly. Highly recommended!
    Date published: 2016-05-03
    Rated 5 out of 5 by from Incredibly reliable & best accessory I bought for URSA Mini! I bought the Atoch C2S to use in the trenches on an independent feature & just wrapped principal photography (the film is Flesh and Blood - you can look it up on IMDB). LET ME FIRST SAY THAT THIS IS BY FAR ONE OF THE MOST RELIABLE PIECES OF PRODUCTION EQUIPMENT I'VE EVER OWNED! For 4 weeks straight we beat the snot out of it, 7 days a week shooting nonstop with it attached to our URSA Mini 4.6K shooting 4.6K RAW recording at least 2TB of RAW footage per day onto Samsung Pro SSDs. The Atoch C2S is built like a tank - we shot in waist deep snow, rain, 80 degree heat and it never dropped a single frame or had any problems at all with it which is nothing short of amazing in the world of production. We had 8 x 512GB Samsung Pro SSDs that we rotated through which allowed us to keep a smooth DIT workflow & not worry about having to constantly clear cards. We never could have afforded to do this with CFast 2 cards - it would have been outrageously expensive. If you want to verify and see pics of it in action you can check out Inner7studios Instagram feed. **As a side note I've since begun using the Atoch C2S on a documentary where I'm shooting RAW as well as 120fps RAW in a run n gun fashion and it's been AWESOME. Just had it up above 10,000ft at Mt. Baldy for a shoot & it performed flawlessly. I can't wait to do long interviews w/out worrying about running out of card space.
    Date published: 2016-04-13
    Rated 2 out of 5 by from Power switch broke - can't turn it on. Great idea. But this implementation is flawed. It's made with cheap parts and glue. Power switch broke (stuck in off position) after barely any use and impossible to turn it back on or repair it without destroying it because it's all amatuerishly glued together. Much cheaper and better to buy the CFAST Breakout Cables ($140 for two) and a 5V SATA power supply ($20) and make your own box at 1/4 the price.
    Date published: 2016-09-19
    Rated 5 out of 5 by from Why would you not? As an indie filmmaker, cost is always a deterrent. And when it comes to the Ursa Mini, the biggest deterrent for us was storage. Enter Atoch, which cuts our cost to a 1/4 of Cfast2. From a cost perspective, this is a no brainer. From a functionality perspective, I have absolutely nothing to complain about. And I'm scrutinous. I'll be the first to return something I don't like. It mounts easily wherever you want it, and it's robust, I'm not sure exactly the material, but it's that high impact plastic stuff. I'm, 4TB worth of RAW data into Atoch usage, and I've yet to drop a frame or experience any issue of any kind. I can't imagine shooting with Cfast, it would cost us too much. I can't really live without Atoch, frankly. If I was searching for a complaint, I would recommend to the producers of this fine device to design an SSD caddy for Atoch, so you don't get any flapping picked up by onboard mics. The spacers aren't quite enough to dampen this. But that is certainly not worth a half star deduction. This is a 5er all the way.
    Date published: 2016-04-18
    Rated 5 out of 5 by from would buy again Great Product
    Date published: 2017-02-22
    Rated 5 out of 5 by from Great product. If you don't care about the extra weight, It's a great product. I don't have buy expensive CF cards. I bought two extra SSD cards and shooting at 4k is a breeze. I never run out of space. It only need a cover for it and I found one online. I'm good. Thank you B&H.
    Date published: 2017-05-03
    • y_2018, m_12, d_4, h_18
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.9
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_17
    • loc_en_US, sid_1245606, prod, sort_[SortEntry(order=RELEVANCE, direction=DESCENDING)]
    • clientName_bhphotovideo
    Be the first to review this item
    Customer Photos

    Atoch C2S Q&A

    Atoch C2S accessories