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OWC Gemini 16TB 2-Bay Thunderbolt 3 Raid Array (2 x 8TB)

Name: OWC Gemini 16TB 2-Bay Thunderbolt 3 Raid Array (2 x 8TB)
Brand: OWC
SKU: OWCTB3GM0H16
Price: 1069.99 USD
Availability: InStock
Rating: 4 (2 reviews)

BH #OWCTB3GM0H16 • MFR #OWCTB3GM000H16

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OWC Gemini 16TB 2-Bay Thunderbolt 3 Raid Array (2 x 8TB)

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Key Features

16TB Storage Capacity
2 x 8TB 3.5" 7200 rpm HDDs
2 x Thunderbolt 3 | 2 x USB-A 3.2 Gen 2
1 x 2.5 GbE LAN Port

Store your most essential assets such as video clips, photos, and music with the robust and flexible OWC Gemini 16TB 2-Bay Thunderbolt 3 Raid Array. Designed to handle scalable workloads, the Gemini can house all of your important data and quickly migrate information to and from your host system with multiple connectivity options.

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$1,069.99

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Drive Type | Capacity

HDD | 24TB (2 x 12TB)

HDD | 32TB (2 x 16TB)

HDD | 40TB (2 x 20TB)

SSD | 1TB (2 x 480GB)

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OWC Gemini External HDD Overview

Consisting of two 8TB 3.5" 7200 rpm HDDs, you get a total of 16TB, giving you ample room for your media files, data, and more. Equipped with a hardware RAID controller with the ability to utilize software RAID systems, the Gemini supports RAID 0, 1, SPAN, and JBOD levels, allowing you to set the parameters of your system to your liking. The Gemini connects to your host system via Thunderbolt 3 ports with daisy-chaining capabilities and also includes two USB-A 3.2 Gen 2 ports for peripheral support. A 2.5 Gigabit Ethernet port supports networking capabilities with online management using optional software. You can connect a wide range of displays to the Gemini using the HDMI video output, producing up to 8K resolution at 120 Hz for a clear and fluid picture. With a front-facing SD card reader, you can manage data from your mobile devices such as phones, tablets, cameras, and more. A single 60mm 3000 rpm fan keeps your drives cool under extreme loads and optimize the lifespan of your equipment.

The Do-It-All Tool for Digital Workflows

With dual drive bays and seven connectivity ports including an SD 4.0 (UHS-II) 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 a hardware RAID to unleash the full potential of two 3.5" 7200 rpm hard drives or 2.5" SATA SSDs. Pre-configured as RAID 0 to deliver maximum throughput from its drives, the Gemini offers real-world HDD speeds up to 562 MB/s for audio editors/musicians/producers, individual content creators, photographers, small photography studios, and filmmakers working with up to 4K resolutions and compressed codecs. A/V professionals seeking SSDs that start and stay fast over their full capacity can take advantage of the proven reliability of OWC Mercury Extreme SSDs. With sustained RAID 0 speed up to 956 MB/s, you can easily handle 8K single and 4K multi sequences, slow motion video, 10-bit footage, and ultra-high-resolution raw pictures.

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 2.5Gb Ethernet port so you can transfer files and work up to 2.5x faster over wired networks and enjoy increased productivity in an IP-based workflow. 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. It's also great for sending your files over to a NAS to keep them safely archived.

Gain a 8K Perspective

With a dedicated latest generation HDMI port, the Gemini empowers you to add the fresh, crisp perspective of an 8K 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 8K 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).

Unleash iPad Pro Content Creation Capabilities

For all the power iPad Pro offers, it's handcuffed by limited internal storage, display size, and a single Thunderbolt port. The Gemini transforms the iPad Pro into a complete content creation platform with capabilities that exceed many desktop and notebook computer setups. Offload your internal storage to the multi-terabytes of SSD storage capacity with speeds up to 956 MB/s to handle all your Davinci Resolve, Lumafusion, Lightroom, Photoshop, Capture One, and/or Illustrator projects. You'll see your work easier by adding an external display via the HDMI port. Ingest your camera files with the SD card reader. Share files in a blink on a high-speed network. Connect a mouse and full-sized keyboard with USB ports. There's even 27W of power delivery to keep your iPad Pro charged and ready for mobile use.

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 28" OWC Thunderbolt cable. But if your workflow demands a different length to make the connection, OWC Thunderbolt (USB-C) cables are the perfect choice.

Stabilize Thunderbolt and USB-C Cables

Active workspaces expose gear to bumps, shoves, or even the random tail wag from a pet. 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 confidence even in the highest 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.

UPC: 810100983666

OWC Gemini External HDD Specs

Drives

Storage Capacity	16 TB
Included Drives	2x 8 TB SATA III 3.5" HDD (512 MB Cache) 7200 RPM

General

Number of Bays	2x 3.5" SATA III
Inputs/Outputs	2x USB-C Thunderbolt 3 (40 Gb/s) Input/Output 2x USB-A 3.1/3.2 Gen 2 Input 1x HDMI 2.1 Output 1x RJ45 2.5GbE Input/Output
Media Card Slots	SD/SDHC/SDXC
PCI Expansion	No

Software

OS Compatibility

Windows 10 or Later
Windows Server 2016 to 2022
macOS 12 or Later
Linux
iPadOS 15 or Later
Chrome OS 107 or Later

Electrical

Input Power	100 to 240 VAC, 50 / 60 Hz at 2 A
Power Consumption	120 W

Physical

Operating Conditions	41 to 95°F / 5 to 35°C at 8 to 90% Humidity
Storage Conditions	-4 to 140°F / -20 to 60°C at 5 to 95% Humidity
Certifications	BSMI, CE, FCC, RCM, RoHS, VCCI
Cooling	1x 3000 rpm 60 mm Fan
Noise Level	19.3 dBA
Material of Construction	Aluminum
Cable Length	2.3' / 0.7 m
Dimensions	9.4 x 5.8 x 3.3" / 23.9 x 14.7 x 8.4 cm
Weight	3.5 lb / 1588.0 g

Packaging Info

Package Weight	9.47 lb
Box Dimensions (LxWxH)	13.2 x 10.2 x 4.8"

OWC Gemini External HDD Reviews

Not 100%

By David

Rated 3 out of 5

Date: 2025-12-19

As usual, B&H was great. The package even got here early. The OWC Gemini though is noisy and the ethernet port won't be of use to people as you can't connect it to the network on its own, it goes through the host system. I'm not sure how often that would be useful. Also there was no manual in the box so I had to search around online to find the correct way to set the type of RAID config I wanted. On the plus side it is a lot of storage and it is pretty fast. I'll be able to replace a couple of smaller drives with it.

Quick to Set Up for Mac

By Charles

Rated 5 out of 5

Date: 2025-09-10

Quick to set up and run. I use it in Raid 1 mode, replacing LaCie 2Big 16TB that kept failing (not the drives but the controllers). After 3 replacements in less than 3 years, I gave up on LaCie. We'll see how long OWC lasts. Highly suggest to put HD's to sleep when not in use to save on energy and wearing them out!

See any errors on this page?

Is this compatible with Mac OS 15?

Asked by: Michael

The OWC Gemini 40TB 2-Bay Thunderbolt 3 Raid Array (2 x 20TB), B&H # OWCTB3GM0H40, is compatible with macOS 15 Sequoia.

Answered by: Miguel M

Date published: 2025-09-05

Does anyone know if the fan is loud and also ...

Does anyone know if the fan is loud and also turns off when the computer is shut down?

Asked by: Julian

The OWC Gemini 40TB 2-Bay Thunderbolt 3 Raid Array (2 x 20TB), B&H # OWCTB3GM0H40, is rated for up to 19.3 dB; the fans turn off when the computer is shut down.