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We recommend 12.0TB OWC Gemini Two-Drive HDD RAID Thunderbolt (40Gb/s) External Storage + 7-Port Docking Solution (Mfr P/N: TB3GM000H12) from OWC for $699.99 as a suitable alternative.
12.0TB OWC Gemini
Two-Drive RAID Thunderbolt (40Gb/s) External Storage + 7-Port Docking Solution
Mfr P/N: TB3RSDK12T OWC SKU: OWCTB3RSDK12T
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Highlights
- Performance storage: up to 498MB/s
- Fast connectivity: (2) Thunderbolt 3 ports (Thunderbolt 2/Thunderbolt backward compatible1)
- Speed and storage: hardware RAID controller (RAID 0,1, Span or JBOD/Independent)
- Easy camera uploads: frontside SD 4.0 (UHS-II) card reader
- A hub of options: (2) USB 3.2 (5Gb/s/s) Type-A ports
- Full steam ahead: 1Gb/s Ethernet port
- See work in progress: DisplayPort 1.2 for adding up to a 4K monitor
- Custom configurations: (2) bays for 2.5-inch or 3.5-inch SATA drives
- 2 Year OWC Limited Warranty
Overview
The Do-It-All Tool for Digital Workflows
With dual drive bays and seven connectivity ports including an SD 4.0 card reader, the OWC Gemini is the do-it-all tool that will organize your digital life. You’ll have plenty of room to duplicate footage, create and manage archives, or render and process effects. Connect your favorite peripherals via USB ports. Ingest the day’s shoot or drone footage with the frontside reader.
Hardware RAID: Speed, Reliability, Flexibility
The OWC Gemini utilizes hardware RAID to unleash the full potential of two 3.5" 7200RPM hard drives. Preconfigured in high-speed RAID 0 mode to deliver maximum throughput from its drives, the Mercury Gemini offers real-world speeds up to 773MB/s to handle HD video workflows. If you desire the extra security of mirrored data, you can configure the Mercury Gemini in RAID 1 mode. Need more drive flexibility? Set up a span to combine the capacity of the two drives into one huge volume or use the drives as independent volumes.
Stay Connected to Your Team and Media
The OWC Gemini features a powerful Gigabit Ethernet port that keeps you connected at top speeds. Great for shared workspaces and workflows, file transfers breeze by quickly so you spend less time setting up and more time getting to work. When it’s time to share your progress, you can use your RAID options to render out working files and a fast connection to post for team and client reviews.
Gain a 4K Perspective
With a dedicated DisplayPort 1.2, OWC Gemini empowers you to add the fresh, crisp perspective of a 4K display to your workflow. Whether in your home office or on a mobile studio job, seeing your work in full detail is just one connection away. Use it to free up your laptop port, so you can dock in and out quickly and stay mobile.
Reclaim Your Desktop
With multi-drive media dumps, controllers, A/V outputs, and a mess of device cables, it can be hard enough to find space for your notebook let alone room to work. OWC Gemini fights the clutter with a single-cable connection that delivers storage, ethernet sharing, charging power, and 4K monitor support while neatly consolidating all your peripheral device cables. Reclaim your workspace and reduce your stress.
Finally, a RAID as Mobile as Your Life
With the built-in hardware-based RAID controller, you get speed and security without being dependent on what operating system you are running. If you work in a cross-platform world, you can easily connect OWC Gemini to Mac and PC using OWC's MacDrive software (sold separately).
From the Rocket Yard Blog
OWC Gemini Makes 3-2-1 Video Archival Easy. Here’s How to Protect Your Files
Pro video teams should always back up at least three copies of their videos in two locations. OWC Gemini makes the process easy. Here are our tips for archival strategy with this all-in-one wonder.
Thunderbolt Made Easy
We make it easy to choose the right gear. Our Thunderbolt Certified products offer the same performance and functionality whether they are Thunderbolt 3 or Thunderbolt 4. And if you’re rocking a beloved Thunderbolt 2 machine, we offer a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter so you can plug into our universe of award-winning solutions. No hassles, no confusion. That’s the OWC Difference.
Apple Mac models with Thunderbolt 2/Thunderbolt ports can be connected using a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 Adapter and a Thunderbolt 2 cable (not included). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
Disconnect in One Click
Safely disconnect multiple drives in a single click. OWC Dock Ejector was designed by OWC hardware and software engineers to ensure all data is written before disconnection, saving time and protecting against data loss. It makes losing your hard-earned work a thing of the past.
OWC Thunderbolt Cable Included
OWC Gemini comes with a certified 0.7M OWC Thunderbolt Cable. But if your workflow demands a different length to make the connection, OWC Thunderbolt (USB-C) Cables are the perfect choice.
Work with Ultimate Confidence
Active workspaces expose gear to unexpected bumps and shoves. OWC ClingOn custom cable stabilizers (sold separately) screw into the OWC Dock or OWC Drive housing to reduce – if not completely eliminate – cable strain on Thunderbolt and USB-C connections so you can work with ultimate confidence even in the highest foot traffic environments.
Innergize Your Workflow with Highest Performance and Reliability
OWC Innergize™ is the first stage of the Capture to Completion™ ecosystem of OWC products designed to seamlessly propel professional photographers, videographers, and content creators to the highest level of workflow performance and reliability. This OWC custom-designed app is a complete health, performance, and field upgrade management tool when using OWC Atlas memory cards with OWC Atlas readers and reader equipped products.
Work with Maximum Confidence and Reliability
Health
Over time and use cycles, flash memory does wear out. Innergize verifies and reports the percentage of use life remaining. Now you can work with full confidence your OWC flash memory product will deliver the reliability you can trust.
Sanitize
Writes, deletes, and formatting all take their toll on memory cards. Innergize cleans and restores the flash memory performance of OWC memory cards so you can get the best results on every use.
Field Upgrade
When new cameras or firmware updates to existing cameras are introduced, they may not work properly with flash memory cards and drives. Innergize gives OWC memory card users the ability to quickly upgrade their firmware in the field for full compatibility, additional performance enhancements, and bug fixes for optimal reliability.
- Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (not included). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
Includes
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- (1) OWC Gemini Thunderbolt Dock and External Storage Solution
- (1) 0.7M (28") Thunderbolt (USB-C) Cable
- (1) External Power Supply and Power Cable
- (1) Quick Start Guide for OWC Gemini
- (1) User Guide for OWC Gemini
- (1) OWC Dock Ejector for Mac and Windows (software download)
- (1) User Guide for OWC Dock Ejector
- 2 Year OWC Limited Warranty
Specs
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Drive Bays
- 2 bays supporting: 2.5-inch SATA HDDs, 2.5-inch SATA SSDs, 3.5-inch SATA HDDs, 3.5-inch SATA SSDs
Total Capacity
- 12.0TB
Total Solution Cache Size
- 512 MB
Drive Mechanism
- (2) 6.0TB Seagate Exos 7E8 7,200RPM Self-Encrypting (SED) Hard Disk Drive with 256 MB cache
- *OWC reserves the right to replace or upgrade to equivalent or better components.
Hot Plug Support
- Yes
Boot Support
- Mac only
Rotational Speed
- 7,200RPM
Storage Interface
- SATA 6.0 Gb/s
RAID Capable
- Yes
Default RAID Level
- RAID 0
RAID Levels Supported
- RAID 0
- RAID 1
- SPAN
- JBOD
RAID Features
- Hardware RAID
Device Ports
- (1) Host Port - Thunderbolt 3 (USB-C) up to 40Gb/s (5000MB/s)
- (1) Thunderbolt 3 (USB-C) Port
- (2) USB 3.2 Gen 1 Type-A Ports up to 600MB/s
- (1) DisplayPort Port
- (1) Gigabit Ethernet (GbE) RJ45 Port
Memory Card Slots
- (1) SD
Power Delivery
- Provides up to 27 watts of power via Thunderbolt 3 to charge or reduce laptop and device battery draw.
Display Support
- Up to one 5K display @ 60Hz,
- or one 4K display @ 60Hz,
- or one 4K display @ 30Hz,
- or two 4K displays @ 60Hz,
- or one 4K display @ 60Hz and one 4K display @ 30Hz
Display Support by Port
- Thunderbolt 3: Up to 5K @ 60Hz via a native Thunderbolt 3 display or 4K @ 60Hz via a Thunderbolt display or a USB-C display adapter
Ethernet Speeds (RJ-45)
- 1Gb/s "Gigabit" (1000BASE-T)
- 100Mb/s (100BASE-T)
- 10Mb/s (10BASE-T)
Jumbo Frame Support
- Yes
Data Rate
- Up to 40 Gb/s
Data Transfer Rate (Maximum)
- Thunderbolt 3 : Up to 40Gb/s (or 5000MB/s)
Benchmark Speed, Read (Max)
- Up to 498MB/s
Benchmark Speed, Write (Max)
- Up to 493MB/s
Chipset / Controller
- Thunderbolt (2): Intel JHL6540
- Media Reader: Genesis Logic GL-3227
- USB (2): Fresco Logic FL1100EX
- Ethernet (1): Intel i210
- SATA Controller: ASMedia AS
Contact Start Stops
- 600,000
Host Interface Requirements
- Thunderbolt (USB-C) port (backward compatible with Thunderbolt 2/Thunderbolt1)
Mac OS Compatibility
- macOS 10.12 Sierra
- macOS 10.13 High Sierra
- macOS 10.14 Mojave
- macOS 10.15 Catalina
- macOS 11.x Big Sur
- macOS 12.x Monterey
- macOS 13.x Ventura
- macOS 14.x Sonoma
- macOS 15.x Sequoia
PC OS Compatibility
- Windows 10 64-bit Edition
- Windows Server 2016
- Windows Server 2022
- Windows 11
Mobile OS Compatibility
- iPadOS 18
- iPadOS 17
- iPadOS 16
- iPadOS 15
- iPadOS 14
Driver Required
- Download Driver
- Windows driver required for 8TB and 10TB models
Other Requirements
- Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable. This configuration provides data transfer at Thunderbolt 2 speeds (up to 20Gb/s) but does not support notebook charging.
External Power Adapter
- Yes
Power Supply
- External UL-listed universal auto-switching power supply
AC Input
- 100-240V, 50-60 Hz, 2.0A
DC Output
- +12V, 10A
Wattage
- 120W
Cooling
- (1) 60mm 3,000RPM cooling fan
Security Slot
- Yes
Housing Material
- High quality aluminum for optimized heat dissipation
Color
- Aluminum
Dimensions
- Height: 14.7 cm (5.8 in)
- Length: 23.8 cm (9.4 in)
- Width: 8.5 cm (3.3 in)
Weight
- 3.0 kg (6.58 lbs)
Certifications
- CE
- FCC
- VCCI
- BSMI
- RCM
- Thunderbolt™technology
RoHS Compliant
- Yes
Ambient Temperature
- Operating: 41°F to 95°F (5°C to 35°C)
- Non-Operating: -4°F to 140°F (-20°C to 60°C)
Altitude
- Operating: -304.8 m to 3,048.0 m (-1,000 ft to 10,000 ft)
- Non-Operating: -304.8 m to 12,192.0 m (-1,000 ft to 40,000 ft)
Humidity
- Operating: 8% to 90% non-condensing
- Non-Operating: 5% to 95% non-condensing
Shock
- Operating: Varies depending on drive mechanism installed
- Non-Operating: Varies depending on drive mechanism installed
Noise
- Varies depending on drive mechanism installed
- Thunderbolt 2/Thunderbolt compatibility requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) adapter and a Thunderbolt 2 cable (not included). This configuration provides data transfer at up to 20Gb/s but does not support notebook charging.
- Must be connected to host computer via Thunderbolt (USB-C), and cannot be used as a NAS. The Ethernet port provides the host computer with a 1GbE network connection over Thunderbolt (USB-C), but it cannot be used to access the drives over the network.
- When using 8TB or 10TB HDDs from Seagate and connecting the device to a PC running Windows, please make sure to first install the Windows driver.
- The DisplayPort port does not support DP++. When using a DisplayPort to HDMI adapter, make sure to use an active adapter.
- Dual display support, including available resolution and refresh rates, is dependent on host hardware and drivers.
- Apple silicon M1/M2/M3 Pro, M1/M2/M3 Max, and M1/M2 Ultra Mac models, Apple Intel-based Mac models, and Thunderbolt 4 PCs can support up to two displays at up to 4K @ 60Hz via Thunderbolt.
- Apple silicon M1/M2/M3 Mac models can support one external display up to 4K @ 60Hz via Thunderbolt. - The following Apple silicon M1/M2/M3 Mac models support a single display over a Thunderbolt port:
- MacBook Pro (14-inch, M3, 2023)
- MacBook Pro (13-inch, M1, 2020) - MacBookPro17,1
- MacBook Pro (13-inch, M2, 2022) - Mac14,7
- MacBook Air (M1, 2020) - MacBookAir10,1
- MacBook Air (M2, 2022) - Mac14,2
- Mac mini (M1, 2020) - Macmini9,1 - The following Mac models provide only partial support for DisplayPort 1.4, including limiting resolution to 5K or 6K at 60Hz. Please review Apple's display specifications for your specific Mac to determine the maximum supported resolution and color depth:
- MacBook Pro (15-inch, 2018) - MacBookPro15,1
- MacBook Pro (13-inch, 2018, Four Thunderbolt 3 ports) - MacBookPro15,2
- MacBook Pro (13-inch, 2019, Four Thunderbolt 3 ports) - MacBookPro15,2
- MacBook Pro (15-inch, 2019) - MacBookPro15,1 and MacBookPro15,3
- MacBook Pro (13-inch, 2019, Two Thunderbolt 3 ports) - MacBookPro15,4
- MacBook Pro (16-inch, 2019) - MacBookPro16,1 and MacBookPro16,4
- MacBook Pro (13-inch, 2020, Four Thunderbolt 3 ports) - MacBookPro16,2
- MacBook Pro (13-inch, 2020, Two Thunderbolt 3 ports) - MacBookPro16,3
- MacBook Air (Retina, 13-inch, 2018) - MacBookAir8,1
- MacBook Air (Retina, 13-inch, 2019) - MacBookAir8,2
- MacBook Air (Retina, 13-inch, 2020) - MacBookAir9,1
- iMac (Retina 5K, 27-inch, 2019) - iMac19,1
- iMac (Retina 4K, 21.5-inch, 2019) - iMac19,2
- iMac (Retina 5K, 27-inch, 2020) - iMac20,1 and iMac20,2
- Mac mini (2018) - Macmini8,1
- Mac Pro (2019) - MacPro7,1
- Mac Pro (Rack, 2019) - MacPro7,1 - A firmware update is required to use OWC Gemini with OWC Innergize software. Please consult the "Innergize for PC: Firmware Update" or "Innergize for Mac: Firmware Update" guide for download and installation instructions.
- SD cards inserted into the OWC Gemini will not be recognized by Windows Disk Management or applications after being safely removed. Power cycle the entire OWC Gemini by disconnecting the power source. This will allow the OWC Gemini to create a new card session resulting in Windows recognizing the SD card.
Benchmarks
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Truth in Numbers: Another OWC Difference
There are many attributes that define “The OWC Difference.” By listing real-world performance tests of OWC solutions, we’re confident you’ll be completely satisfied with your technology investment.
macOS RAID 0 Test Results
Blackmagic Disk Speed Test - Intel
Thunderbolt 3
Blackmagic Disk Speed Test - Apple silicon
Thunderbolt 3
AJA System Test - 4K - Intel
Thunderbolt 3
AJA System Test - 4K - Apple silicon
Thunderbolt 3
Compatibility & Installation Videos
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MacBook Pro
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
MacBook Air
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Mac Pro
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
Mac Studio
Mac mini
Requires Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and Thunderbolt 2 cable.
PC Compatible
PC must have a compatible Thunderbolt port
iPad
Products
Videos
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Learn More
Customer Reviews
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Good quality and very stable with hardware driven raid.
I would recommend this product to a friend!
Verified Purchase.- Reviewer:captcarl
Wow, thank you so much for your fantastic review! We're thrilled to hear that our product met your expectations in performance and quality. It's great to know that you're enjoying the stability of the hardware-driven RAID—it's one of our favorites too! Your feedback means a lot to us, and we appreciate you taking the time to share your experience. Happy computing!
Very easy to use. Small and compact and perfect for my desk.
I would recommend this product to a friend!
Verified Purchase.- Reviewer:Reviewer1594043825
Thank you so much for your fantastic review! We're thrilled to hear that you found our product fast and easy to use. It’s great to know that it's the perfect fit for your desk. We appreciate your support and look forward to serving you again! Please feel free to contact us if you have any further questions, comments, or concerns. https://eshop.macsales.com/Service/
Raid 0 I almost get 500 write speeds the hub is very handy
I would recommend this product to a friend!
Verified Purchase.- Reviewer:ibtrains
Thank you so much for your amazing review! We're thrilled to hear that you're loving your drives and achieving such impressive write speeds with RAID 0! And we agree, the hub is definitely a handy addition to enhance your setup. Your satisfaction makes us so happy, and we truly appreciate your support!
