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OWC OWCTB3GM000H12 Gemini Thunderbolt Dock and External Storage - 2 x 6TB HDDs Installed - 12TB Total - Thunderbolt 3 - 2. 5GbE - RAID 0/1/JBOD/SPAN
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Product Features
Technical Overview
The Gemini solution features a Serial ATA controller supporting RAID 0, 1, JBOD, and SPAN configurations, providing flexibility for performance optimization, data protection, or capacity expansion. The dual-drive bay accommodates both 2.5-inch and 3.5-inch drives, with two hard drives pre-installed and two additional slots available for solid-state drives.
Connectivity extends beyond storage with two Thunderbolt 3 ports for daisy-chaining devices, one 2.5 Gigabit Ethernet port for high-speed networking, two USB 3.2 Gen 2 ports for peripheral connections, and HDMI output for display expansion. The 120W power supply ensures stable operation for all connected devices.
This section brings together practical product details such as Number of Hard Drives Supported, Number of Hard Drives Installed, Total Hard Drive Capacity Installed, Ethernet Technology, so buyers can judge configuration, deployment fit, and day-to-day suitability with less guesswork.
Key Product Advantages
The Gemini solution stands out by integrating substantial storage capacity with professional docking functionality, reducing desktop clutter while maintaining peak performance. The pre-configured 12TB storage array provides immediate workspace for large media files, backups, and project archives without requiring separate drive purchases or configuration.
Dual-Purpose Design
Combines 12TB of storage with Thunderbolt 3 docking capabilities including Ethernet, USB, and HDMI connectivity in one device.
- Eliminates separate storage and dock purchases
- Reduces cable clutter and power adapters
- Single Thunderbolt connection to host computer
Flexible Storage Configuration
Supports multiple RAID modes and accommodates both hard drives and solid-state drives for customized performance and capacity.
- RAID 0 for maximum performance
- RAID 1 for data protection
- JBOD for independent drive management
Deployment / Use Cases
The Gemini solution serves as an ideal storage and connectivity hub for video editors working with 4K and 8K footage, photographers managing large RAW image libraries, and audio professionals handling multi-track sessions. The 12TB capacity provides ample space for current projects while the Thunderbolt 3 interface ensures smooth playback and rapid file transfers.
In business environments, the device functions as a centralized storage repository for departmental files, backup destinations for workstations, or expansion units for computers with limited internal storage. The 2.5 Gigabit Ethernet port enables faster network transfers than standard Gigabit connections, making it suitable for collaborative workflows where multiple users access shared files.
Creative Professional Workflow
Video editors can store complete projects locally for editing, with Thunderbolt 3 ensuring real-time playback of high-resolution footage.
Business Storage Expansion
IT departments can deploy these units as additional storage for workstations or as backup targets for critical business data.
Physical Profile
The desktop form factor measures 5.79 inches in height, 3.35 inches in width, and 9.37 inches in depth, with a weight of 3.53 pounds. The compact design fits easily on desks or under monitors while providing adequate ventilation for the installed drives. The brushed aluminum enclosure offers both durability and effective heat dissipation during continuous operation.
The physical profile is practical for deployment planning because the dimensions and weight are clearly defined: 5.79" (147 mm), 3.35" (85 mm), 9.37" (238 mm), 3.53 lb (1600 g). This helps confirm rack, shelf, desk, or cabinet fit before installation.
- Width
- 3.35" (85 mm)
- Depth
- 9.37" (238 mm)
- Height
- 5.79" (147 mm)
- Weight
- 3.53 lb (1600 g)
What's in the Box
The package includes all necessary components for immediate setup and operation.
Highlights
- 12TB total installed capacity with two 6TB hard drives
- Thunderbolt 3 interface with 40 Gbit/s maximum transfer rate
- Supports RAID 0, 1, JBOD, and SPAN configurations
- 2.5 Gigabit Ethernet port for high-speed networking
- Two USB 3.2 Gen 2 ports for peripheral connections
- HDMI output for display expansion
- Desktop form factor with compact dimensions
- Includes Thunderbolt cable and power supply
- 3-year limited warranty
- RoHS and WEEE environmental compliance
Specifications
| Specifications | |
|---|---|
| Manufacturer | Other World Computing |
| Manufacturer Part Number | OWCTB3GM000H12 |
| Brand Name | OWC |
| Product Line | Gemini |
| Product Name | Gemini Thunderbolt Dock and External Storage Solution |
| Packaged Quantity | 1 |
| Product Type | DAS Storage System |
| Storage | |
| Number of Hard Drives Supported | 2 |
| Number of Hard Drives Installed | 2 |
| Total Hard Drive Capacity Installed | 12 TB |
| Hard Drive Interface | Serial ATA |
| Hard Drive Configuration | 2 x 6TB |
| Number of Solid State Drive Supported | 2 |
| Number of Solid State Drive Installed | 0 |
| Maximum Data Transfer Rate | 40 Gbit/s |
| Network & Communication | |
| Ethernet Technology | 2.5 Gigabit Ethernet |
| I/O Expansions | |
| Number of Total Expansion Bays | 2 |
| Number of 2.5"/3.5" Bays | 2 |
| Controllers | |
| Controller Type | Serial ATA |
| RAID Supported | Yes |
| RAID Levels | 0, 1, JBOD, SPAN |
| Interfaces/Ports | |
| Drive Interface | Serial ATA |
| Host Interface | Thunderbolt 3 |
| HDMI | Yes |
| Total Number of USB Ports | 2 |
| Number of USB 3.2 Gen 2 Ports | 2 |
| Network (RJ-45) | Yes |
| Number of Network (RJ-45) Ports | 1 |
| Number of Thunderbolt 3 Ports | 2 |
| Power Description | |
| Number of Power Supplies Installed | 1 |
| Maximum Power Supply Wattage | 120 W |
| Physical Characteristics | |
| Height | 5.79" (147 mm) |
| Width | 3.35" (85 mm) |
| Depth | 9.37" (238 mm) |
| Form Factor | Desktop |
| Weight (Approximate) | 3.53 lb (1600 g) |
| Miscellaneous | |
| Package Contents | Gemini Thunderbolt Dock and External Storage Solution 1 x 0.7M (28") Thunderbolt (USB-C) Cable 1 x External Power Supply and Power Cable 1 x Quick Start Guide for OWC Gemini 1 x Support Manual for OWC Gemini 1 x OWC Dock Ejector for Mac and Windows (software download) 1 x User Guide for OWC Dock Ejector |
| Environmental Compliance | Restriction of Hazardous Substances (RoHS),Waste Electrical and Electronic Equipment Directive (WEEE) |
| Warranty | |
| Limited Warranty | 3 Year |
User Manual
FAQ
What storage capacity comes pre-installed in the OWC Gemini?
The OWC Gemini Thunderbolt Dock and External Storage Solution comes with two 6TB hard drives installed, providing 12TB of total storage capacity. These drives use the Serial ATA interface and are configured as independent drives by default, though they can be reconfigured into various RAID arrays using the included management software.
Can I add solid-state drives to this storage solution?
Yes, the OWC Gemini supports up to two solid-state drives in addition to the installed hard drives. The device has two expansion bays that accommodate either 2.5-inch or 3.5-inch drives, allowing you to mix hard drives and SSDs for a hybrid storage configuration that balances capacity and performance.
What RAID configurations does the OWC Gemini support?
The OWC Gemini supports RAID 0 (striping for performance), RAID 1 (mirroring for data protection), JBOD (treating drives independently), and SPAN (combining drives into a single volume without striping). The Serial ATA controller manages these configurations, which can be set up using the included software tools for Mac and Windows systems.
What connectivity options does the Thunderbolt dock provide?
Beyond storage connectivity, the dock includes two Thunderbolt 3 ports for daisy-chaining devices, one 2.5 Gigabit Ethernet port for networking, two USB 3.2 Gen 2 ports for peripherals, and HDMI output for connecting displays. This comprehensive connectivity eliminates the need for separate docking stations while maintaining high-speed data transfer.
What is the maximum data transfer speed of this device?
The OWC Gemini achieves a maximum data transfer rate of 40 Gbit/s through its Thunderbolt 3 interface. This high-speed connection ensures rapid file transfers between the storage array and host computer, making it suitable for working with large media files, backups, and other data-intensive applications.
What comes in the box with the OWC Gemini?
The package includes the Gemini Thunderbolt Dock and External Storage Solution unit, a 0.7-meter Thunderbolt (USB-C) cable, an external power supply with power cable, a quick start guide, a support manual, OWC Dock Ejector software for safe disconnection, and a user guide for the Dock Ejector software. All necessary components for immediate setup are provided.
How many cores are listed?
the specifications are intended to help buyers confirm fit, compatibility, and expected day-to-day operation. In practical terms, the best reading of this product comes from how its hardware, connectivity, and deployment details work together.
| Qty | Price | Available |
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