OWC Gemini 40TB 2-Bay Thunderbolt 3 Raid Array (2 x 20TB)

OWC Gemini External HDD Overview

Store your most essential assets such as video clips, photos, and music with the robust and flexible OWC Gemini 40TB 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.

High-Capacity Storage

With two 20TB 3.5" 7200 RPM HDDs, the Gemini delivers 40TB total storage, ideal for media files, backups, and archives. It features a built-in hardware RAID controller and supports RAID 0, 1, SPAN, and JBOD, offering speed, redundancy, or flexibility based on your configuration preferences.

Flexible Connectivity

• 2x Thunderbolt 3 ports with daisy-chaining support
• 2x USB-A 3.2 Gen 2 ports for peripherals
• 1x HDMI 2.1 port for up to 8K video output at 120Hz
• 1x 2.5GbE RJ45 port for fast networking
• 1x SD 4.0 UHS-II card reader for ingesting media from cameras, drones, and mobile devices

Optimized for Creative Workflows

Gemini's hardware RAID enables real-world speeds up to 562 MB/s for HDDs and up to 956 MB/s with OWC SSDs. Whether you're a photographer, filmmaker, or editor, it handles demanding 4K/8K workflows, slow-motion video, and high-res images with ease.

Perfect for Teams & Remote Workflows

The 2.5GbE port enables faster file transfers and seamless collaboration. It's perfect for sharing project files, rendering work-in-progress versions, or pushing files to a NAS for archiving.

8K Display Support

Use the dedicated HDMI port to add a crisp 8K display to your setup — perfect for reviewing details in high-res visuals, especially in production or design environments.

Desk-Friendly Design

Reduce cable clutter and free up your workspace with Gemini's single-cable setup that supports storage, power delivery (27W), network, and display through Thunderbolt 3. Built with a robust aluminum housing and cooled by a 60mm 3000 RPM fan for quiet operation at 19.3 dBA.

Cross-Platform and iPad Pro Compatible

Gemini works with macOS, Windows, Linux, Chrome OS, and iPadOS. When used with iPad Pro, it unlocks desktop-like content creation with external display output, SD card ingest, and device charging.

One-Click Safe Ejection

Included OWC Dock Ejector software ensures all data is written before disconnecting drives, preventing corruption and saving time.

Bundled Accessories

• Certified 28" OWC Thunderbolt cable
• OWC ClingOn stabilizer support (sold separately) to prevent cable strain

Workflow Optimization with OWC Innergize

Gemini is part of the OWC Innergize ecosystem, designed for professional creators. The Innergize app manages device health and performance when used with OWC Atlas memory cards and readers.