OWC today expanded its ThunderBay lineup of storage devices with the new ThunderBay 4 mini and ThunderBay 4 mini RAID 5 Edition. These new portable RAID devices are designed for 2K and 4K video editing with fast Thunderbolt 2 performance and SSD support.

"Our new ThunderBay 4 mini is perfect for mobile workflows involving demanding applications and large mission-critical files," said Jen Soulé, OWC President. "The combination of RAID-ready capabilities and Thunderbolt 2 technology makes working with large 2K and 4K files easier, faster, and more flexible and affordable than ever before. Now users can get big performance in a small footprint - all in a portable, production-grade 4-Bay enclosure."

The ThunderBay 4 mini and mini RAID 5 Edition both include four 2.5-inch drive bays that are compatible with either HDDs or SSDs, allowing owners to build a storage solution suitable for their needs. The new ThunderBay minis also include Thunderbolt 2 transfer speeds of 1,284MB/s, the ability to connect multiple ThunderBays into a RAID array and OWC's signature drive "burn-in" reliability.

owc-mini-4
Similar to earlier ThunderBay models, the ThunderBay 4 mini is available in a base bring-your-own-drives model for $379 with configurations from 2 TB to 8 TB available at additional cost.

While the ThunderBay 4 mini and the mini 4 RAID 5 Edition share the same internals, the RAID version ships preconfigured for RAID 5 with support for RAID 0, 1, 4, 5, and 1+0. Pricing on the RAID model starts at $479 when you supply the necessary drives and climbs to $2,499 for the 4 TB SSD model.

Both the ThunderBay 4 mini and ThunderBay 4 mini RAID 5 Edition are available now at OWC's website. The larger desktop ThunderBay 4, introduced last year with support for 3.5-inch drives, is still available starting at $449 for the bring-your-own-drives configuration.

Top Rated Comments

mysteryzone Avatar
145 months ago
I like the form factor and everything, but I'd rather my raid not be using my CPU for the raid math. I know OWC has been selling this idea for a while. But it just seems kind of cheeky to charge that much for dumb disk caddy that leans on your computers processor, even if it is only an infinitesimal load.
There are comparable NAS and DAS products in the same price range that don't rely on your computer at all for raid parity calculation.

Actually, SoftRAID has done an absolute tremendous job with their implementation of RAID 5. There are several advantages of their software RAID 5 over hardware RAID 5.

1. SoftRAID is fully multicore aware and will take advantage of how ever many cores your machine has.
2. With the power of today’s processors, the CPU overhead is so low as to be unnoticeable.
3. Rebuild times are a fraction of what they would be on a hardware RAID.
4. Because the software handles all the parity, disks do not need to be the same size, make, model or firmware, like they would in a hardware RAID.
5. Additionally there is no data loss if you want to resize the disk, in any of the RAID modes, even RAID 5.

There are a lot more benefits to SoftRAID than even I listed here. Definitely worth checking out for anyone who could benefit from a RAID setup.
Score: 4 Votes (Like | Disagree)
calaverasgrande Avatar
145 months ago
I like the form factor and everything, but I'd rather my raid not be using my CPU for the raid math. I know OWC has been selling this idea for a while. But it just seems kind of cheeky to charge that much for dumb disk caddy that leans on your computers processor, even if it is only an infinitesimal load.
There are comparable NAS and DAS products in the same price range that don't rely on your computer at all for raid parity calculation.
Score: 3 Votes (Like | Disagree)
Truffy Avatar
145 months ago
RAID 5? Isn't that what people who don't care about data security use these days?
Score: 2 Votes (Like | Disagree)
JoEw Avatar
145 months ago
Yeah this is great an all... but I think a solid portable SSD with thunderbolt would sell like crazy. I just want a single portable SSD that connects with thunderbolt. Thunderbolt has been out for what... 4 years or so? Why is this so hard to find?!
what like this?
http://www.amazon.com/gp/product/B00LF87NBK/ref=pd_lpo_sbs_dp_ss_1?pf_rd_p=1944687402&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B00HRKB2F8&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1HRY20QVBRB2ZPVPBS9C

There are tons of Thunderbolt portable bus-powered SSD's.

----------

Actually, SoftRAID has done an absolute tremendous job with their implementation of RAID 5. There are several advantages of their software RAID 5 over hardware RAID 5.

1. SoftRAID is fully multicore aware and will take advantage of how ever many cores your machine has.
2. With the power of today’s processors, the CPU overhead is so low as to be unnoticeable.
3. Rebuild times are a fraction of what they would be on a hardware RAID.
4. Because the software handles all the parity, disks do not need to be the same size, make, model or firmware, like they would in a hardware RAID.
5. Additionally there is no data loss if you want to resize the disk, in any of the RAID modes, even RAID 5.

There are a lot more benefits to SoftRAID than even I listed here. Definitely worth checking out for anyone who could benefit from a RAID setup.
Agree with all thee above, but I think what he means is how can someone justify $450 for a thunderbolt controller and hard drive carriage? The margin on this must be incredible.
Score: 2 Votes (Like | Disagree)
hfg Avatar
144 months ago
Per the OWC website, it looks as though it does have an internal power supply

Internal UL Listed U.S./International Auto Switching 100 ~ 240v, 50/60Hz input, 12 Volt 6.0 Amp output Power Supply (http://eshop.macsales.com/item/OWC/TB4MJB0GB/)
However ... if you look at the photo of the back of the unit, it has a barrel jack labeled "DC 12V", so it does have an external power supply. I guess that external power brick has a standard 3-prong power plug cable included with it. Looks like a "cut & paste" error when they created the spec page.
Score: 1 Votes (Like | Disagree)
unplugme71 Avatar
144 months ago
what like this?
http://www.amazon.com/gp/product/B00LF87NBK/ref=pd_lpo_sbs_dp_ss_1?pf_rd_p=1944687402&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=B00HRKB2F8&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=1HRY20QVBRB2ZPVPBS9C

There are tons of Thunderbolt portable bus-powered SSD's.

----------



Agree with all thee above, but I think what he means is how can someone justify $450 for a thunderbolt controller and hard drive carriage? The margin on this must be incredible.
Considering you can get a 5 bay drobo with Thunderbolt for like $100 more and everything is handled by the Drobo with ease of use, expansion, etc... I'd easily pass on this.
Score: 1 Votes (Like | Disagree)

Popular Stories

iOS 26

iOS 26.2 Coming Soon With These 8 New Features on Your iPhone

Thursday December 11, 2025 8:49 am PST by
Apple seeded the second iOS 26.2 Release Candidate to developers earlier this week, meaning the update will be released to the general public very soon. Apple confirmed iOS 26.2 would be released in December, but it did not provide a specific date. We expect the update to be released by early next week. iOS 26.2 includes a handful of new features and changes on the iPhone, such as a new...
Google maps feaure

Google Maps Quietly Added This Long-Overdue Feature for Drivers

Wednesday December 10, 2025 2:52 am PST by
Google Maps on iOS quietly gained a new feature recently that automatically recognizes where you've parked your vehicle and saves the location for you. Announced on LinkedIn by Rio Akasaka, Google Maps' senior product manager, the new feature auto-detects your parked location even if you don't use the parking pin function, saves it for up to 48 hours, and then automatically removes it once...
Foldable iPhone 2023 Feature 1

Apple to Make More Foldable iPhones Than Expected [Updated]

Tuesday December 9, 2025 9:59 am PST by
Apple has ordered 22 million OLED panels from Samsung Display for the first foldable iPhone, signaling a significantly larger production target than the display industry had previously anticipated, ET News reports. In the now-seemingly deleted report, ET News claimed that Samsung plans to mass-produce 11 million inward-folding OLED displays for Apple next year, as well as 11 million...
AirPods Pro Firmware Feature

Apple Releases New Firmware for AirPods Pro 2 and AirPods Pro 3

Thursday December 11, 2025 11:28 am PST by
Apple today released new firmware designed for the AirPods Pro 3 and the prior-generation AirPods Pro 2. The AirPods Pro 3 firmware is 8B30, up from 8B25, while the AirPods Pro 2 firmware is 8B28, up from 8B21. There's no word on what's include in the updated firmware, but the AirPods Pro 2 and AirPods Pro 3 are getting expanded support for Live Translation in the European Union in iOS...
iOS 26

15 New Things Your iPhone Can Do in iOS 26.2

Friday December 5, 2025 9:40 am PST by
Apple is about to release iOS 26.2, the second major point update for iPhones since iOS 26 was rolled out in September, and there are at least 15 notable changes and improvements worth checking out. We've rounded them up below. Apple is expected to roll out iOS 26.2 to compatible devices sometime between December 8 and December 16. When the update drops, you can check Apple's servers for the ...
AirTag 2 Mock Feature

Apple AirTag 2: Four New Features Found in iOS 26 Code

Thursday December 11, 2025 10:31 am PST by
The AirTag 2 will include a handful of new features that will improve tracking capabilities, according to a new report from Macworld. The site says that it was able to access an internal build of iOS 26, which includes references to multiple unreleased products. Here's what's supposedly coming: An improved pairing process, though no details were provided. AirTag pairing is already...
iOS 26

Apple Seeds Second iOS 26.2 Release Candidate to Developers and Public Beta Testers

Monday December 8, 2025 10:18 am PST by
Apple today seeded the second release candidate version of iOS 26.2 to developers and public beta testers, with the software coming one week after Apple seeded the first RC. The release candidate represents the final version iOS 26.2 that will be provided to the public if no further bugs are found. Registered developers and public beta testers can download the betas from the Settings app on...
iPhone 14 Pro Dynamic Island

iPhone 18 Pro Leak Adds New Evidence for Under-Display Face ID

Monday December 8, 2025 4:54 am PST by
Apple is actively testing under-screen Face ID for next year's iPhone 18 Pro models using a special "spliced micro-transparent glass" window built into the display, claims a Chinese leaker. According to "Smart Pikachu," a Weibo account that has previously shared accurate supply-chain details on Chinese Android hardware, Apple is testing the special glass as a way to let the TrueDepth...
ipad blue prime day

iPad 12 Rumored to Get iPhone 17's A19 Chip, Breaking Apple Tradition

Wednesday December 10, 2025 12:22 pm PST by
The next-generation low-cost iPad will use Apple's A19 chip, according to a report from Macworld. Macworld claims to have seen an "internal Apple code document" with information about the 2026 iPad lineup. Prior documentation discovered by MacRumors suggested that the iPad 12 would be equipped with an A18 chip, not an A19 chip. The A19 chip was just released this year in the iPhone 17, and...
studio display purple

Apple Studio Display 2 Code Hints at 120Hz ProMotion, HDR, A19 Chip

Thursday December 11, 2025 4:19 am PST by
Apple's next-generation Studio Display is expected to arrive early next year, and a new report allegedly provides a couple more details on the external monitor's capabilities. According to internal Apple code seen by Macworld, the new external display will feature a variable refresh rate capable of up to 120Hz – aka ProMotion – as well as support for HDR content. The current Studio...