Thunderbolt 3 Dock and Dual-Drive RAID Enclosure
Thunderbolt 3 / SATA 6.0GB/s / USB 3.1 / GbE / DisplayPort
Your Multitool 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.
Configure to Your Unique Needs
You can customize the Gemini to quickly adapt to project changes and help you stay ahead of deadlines. Install your choice of 2.5-inch or 3.5-inch HDDs or SSDs and even combine the speed of a SSD and with the cost-effective storage capacity of a HDD. With built-in hardware RAID, you have four drive set-up choices:
Non-RAID to keep the drives as independent volumes
RAID 1 (mirror) for backup reliability
RAID 0 (stripe) for optimal performance and maximum speed or use
Span to combine the drive capacities into one huge volume for extra-large storage capacities
Done with the drives but need the connectivity? Just eject the RAID from your computer and the Gemini keeps you working smoothly.
Full Stream Ahead
The Gemini features a 1Gb Ethernet port to keep you connected at speeds that leave WiFi in the dust. A must-have for shared workflows and workspaces, Ethernet connectivity speeds up file transfers giving you an edge on your work in progress.
Professional Grade = Ready to Work
We understand having confidence in gear reliability is paramount to creative professionals. That’s why we subject every configured Gemini solution to a multi-step performance certification prior to shipping - ensuring it arrives operating properly and immediately ready for demanding use.
Disconnect in One Click
OWC Dock Ejector software safely disconnects drives in a single click. Designed by OWC hardware and software engineers, Dock Ejector ensures all data is written before disconnection, saving time and protecting against data loss. Use it to move quickly between workstations and get the most out of your OWC Dock. Learn more and download the OWC Dock Ejector.
Blazing-fast transfer speeds: (2) Thunderbolt 3 ports
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 3.1 Gen 1 (Type-A) ports
Full steam ahead: 1Gb 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
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
Hot Plug Support
Thunderbolt (2): Intel JHL6540
Media Reader: Genesis Logic GL-3227
USB (2): Fresco Logic FL1100EX
Ethernet (1): Intel i210
SATA Controller: ASMedia AS
Up to 40 Gb/s
Data Transfer Rate (Maximum)
Thunderbolt 3 : 40 Gb/s (or 5000 MB/s)
Gigabit Ethernet : 1.0 Gb/s
USB 3.2 Gen 1 : 5 Gb/s (or 625 MB/s)
Ethernet Speeds (RJ-45)
1Gb/s "Gigabit" (1000BASE-T)
RAID Levels Supported
MTBF (Mean Time Between Failures)
Varies depending on drive mechanism installed
Contact Start Stops
Varies depending on drive mechanism installed
Mac OS Compatibility
macOS 10.14 Mojave
macOS 10.15 Catalina
macOS 11.x Big Sur
PC OS Compatibility
Windows 10 64-bit Edition
Windows Server 2016
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.
Host Port Requirements
Mac or PC with a Thunderbolt 3 port or later
Mac with Thunderbolt 2/Thunderbolt port (requires adapter)
External UL-listed universal auto-switching power supply
100-240V, 50-60Hz, 2.0
External Power Adapter
Provides up to 27 watts of power via Thunderbolt 3 to charge or reduce laptop and device battery draw.
Number of Bays
(2) Thunderbolt 3 (USB-C) Ports
(2) USB 3.2 Gen 1 Type-A Ports up to 600MB/s
(1) DisplayPort Port
(1) Gigabit Ethernet (GbE) RJ-45 Port
Memory Card Slots
(1) Secure Digital (SD)
(1) 60mm 3,000RPM cooling fan
High quality aluminum for optimized heat dissipation
Height: 14.7 cm (5.8 in)
Length: 23.8 cm (9.4 in)
Width: 8.5 cm (3.3 in)
1.6 kg (3.53 lbs)
Operating: 41°F to 95°F (5°C to 35°C)
Non-Operating: -4°F to 140°F (-20°C to 60°C)
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)
Operating: 8% to 90% non-condensing
Non-Operating: 5% to 95% non-condensing
Varies depending on drive mechanism installed
This device has to be connected to the computer via Thunderbolt 3 and it cannot be used as a NAS. The Ethernet port provides the computer with an 1GbE network connection over Thunderbolt 3 but it cannot be used to access the data on 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 does not support DP++. When using a DisplayPort to HDMI adapter, make sure to use an active adapter.
The DisplayPort on this device is not compatible with Apple Cinema Displays that require a Mini DisplayPort connection (2010, 2013 models). The display will not function even when connected via a DP > MDP adapter. This is a limitation of the Thunderbolt chipset in the Elite Pro Dock.
Manufacturer provided specifications for OWC p/n OWCTB3DKP2D
Number of Bays/Drives
DisplayPort, Ethernet, Thunderbolt 3 (40Gb/s), USB 3.1
Australian Owned Business
Macfixit Australia is an Australian owned and operated business based in Melbourne, Victoria and we've been operating since 2005.
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