OWC miniStack STX Stackable Storage external HDD/SSD Enclosure drive with Thunderbolt Hub expansion

Perfectly sized to seamlessly stack with the Mac mini and the ideal storage and connectivity expansion companion for Thunderbolt or USB-equipped computers and devices. 96W power delivery. Configure miniStack STX your way!

Perfectly sized to seamlessly stack with the Mac mini and the ideal storage and connectivity expansion companion for Thunderbolt or USB equipped computers and devices. 96W power delivery.

Highlights

Massive capacity: add over 200x greater data storage on top of your Mac mini's built-in storage*1

Mega Thunderbolt: use more accessories and devices with three Thunderbolt (USB-C) ports

Maximum compatibility: use with Thunderbolt or USB equipped Macs, PCs, iPads, Chromebooks, Android tablets…virtually anything that supports external storage*2

More Connectivity: add a mix of up to five Thunderbolt devices, three USB devices, and two displays*2,3

Power while working: 96W of notebook charging power via Thunderbolt or USB-C

Pro-grade performance: save/access/backup data and edit 4K video with up to 770MB/s real-world tested performance

Easy backups: Apple Time Machine and Windows File History ready

Plug and play: includes Thunderbolt cable

Whisper-quiet: an aluminum housing with internal heat sink and high-efficiency cooling fan provides cool, nearly silent operation

1-Year OWC Limited Warranty

Mini Sized. Mammoth Possibilities.

Just like great duos Kirk and Spock, Frodo and Sam, or Woody and Buzz, the miniStack and the Mac mini have been the perfect pair since 2005. Now featuring Storage and Thunderbolt Xpansion, the miniStack STX continues its award-winning legacy as the best sidekick a Mac mini can have. 
With a universal SATA HDD/SSD bay AND an NVMe M.2 PCIe SSD slot, you can expand your mini’s storage capacity to gigantic proportions. Three Thunderbolt (USB-C) ports enable you to connect to millions of Thunderbolt, USB, and future USB4 drives, displays, A/V mixers, cameras, tablets, and desktop accessories like a keyboard, card reader, or mouse. The possibilities of how you can use your Mac mini is now only limited to your imagination.*2

Xpands Notebooks, Tablets and More

While sized identical to the Mac mini, the miniStack STX is a sleek, complementary companion for MacBook and PC notebook and desktop machines, iPads, and Chromebooks as well. While highly powerful, these machines are often limited in the number and variety of ports they offer. The miniStack STX solves that expansion limitation with a new world of increased connectivity and storage capacity.

The Dual Drive Dynamo

Just like superheroes have an alter ego, so too does the miniStack STX. The universal SATA drive bay holds a hard disk drive or SSD for upstanding data storage performance with big capacity. When you need to support bandwidth-intensive operations, the NVMe M.2 SSD slot reveals miniStack STX’s ferocious power. NVMe was designed to deliver the speed potential of modern flash drive technology by using a direct path to a computer’s processor over PCIe. As a result, you can enjoy near instant access performance with the miniStack STX.*5

Edit. Save. Access. Like a Pro

With multiple drive configurations available, you can experience up to 770MB/s of real-world data transfer speed. Move 5GB of GoPro footage in about 6 seconds. Transfer 1000’s of photos of that priceless event in mere seconds. Use the SATA drive for Time Machine or File History backups while working off the NVMe drive. With heavyweight performance like this, the miniStack STX is great for multi-stream compressed 4K video editing, photography, audio, virtual machines, and everyday data tasks.

Easily Monitor and Protect Your Data

For even more power and security, add OWC’s SoftRAID software to your miniStackSTX and create a RAID 1 to automatically maintain identical copies of all your data on each drive. For over 25 years, SoftRAID has been the most fully featured and powerful software RAID solution available for Mac and Windows. It starts protecting your data even before you start saving by validating the STX drives are safe for data storage. In the improbable event that you experience a disk issue, your data is still complete and accessible on the miniStack STX’s other drive! SoftRAID then constantly monitors your disks with a combination of S.M.A.R.T. (Self-Monitoring Analysis and Reporting Technology) attributes along with its own I/O statistics. This deep dive disk health analysis identifies potential problems so you can take preventive action. SoftRAID is available for both Mac and PC making it possible to share the miniStack STX between computers.

Move between Mac and Windows

Transferring data between Macs and Windows PCs has become easier, but can be extremely time consuming using cloud or email transfers. Now you can do it directly with external drives and take advantage of crazy fast speeds to transfer huge amounts of data in no time at all thanks to OWC’s MacDrive. This seamless Windows software runs in the background, so there’s nothing to launch or learn. Simply unplug your HFS+ formatted drive from your Mac or PC and move it to your other computer. Not only do you have instant read access, but full write access! MacDrive also includes powerful features that enable you to create and partition and repair basic drive issues.

Compatible: Works with all types of media including hard drives, SSDs, CD/DVD, etc.

Access: Read and write Mac disks direct from Windows Explorer

Manage: Format, partition and delete Mac disks on your PC

Repair: Built-in tools can safely fix basic drive issues

Backups: Browse through Time Machine backups as well as copy those files and folders to your PC

Everything is better when you share. MacDrive makes it incredibly easy to move data between Mac and Windows PCs. If you live in a cross-platform environment MacDrive is a must. Learn more about MacDrive.

Xpand Your Sonic Journey

Building your music setup can be daunting. With two configurable drives in the OWC miniStack STX, it’s easy to create a storage powerhouse for recording and playback of essential tracks in real-time. You can even store your entire loop and sample libraries on the NVMe SSD for in-a-flash use with near zero latency.*5

Xpand Your Connections

You’ll gain a newfound freedom by being able to connect to nearly any past, present, or future device and accessory via three Thunderbolt (USB-C) ports.*2,3,4 Just like the miniStack STX’s innovative storage capability, these three ports have a second super ability. They reinvent the daisy chain by allowing you to create three independent chains with up to five bus-powered Thunderbolt devices with a USB device on the end of each chain (for 8 devices total). You can now also remove devices from one chain without affecting the other chain(s).

Xtend your Investment

If you own a 2018 Intel Mac mini or the latest Apple silicon version, the fact that the internal factory drive can’t be upgraded is no longer a reason to sell your beloved little powerhouse. The miniStack STX maximizes your mini’s investment with a mighty capacity punch for a fraction of the time and money you would spend in buying and setting up a new machine. 
If you own a Mac, PC, or device equipped with USB-A only, you’re not left behind. With a USB-C to USB-A adapter cable (available separately), you can utilize the miniStack STX’s SATA drive bay to transfer data to/from your machine plus infuse your trusty setup with additional device connectivity.

Store from Minutes to Millions

All the features and “technospeak” of an external drive don’t mean a thing if you don’t know how much of a particular file type it can hold. For every 1TB of your OWC drive capacity, you can store up to any of the following:

250,000 photos

250,000 standard quality songs

38,000 high quality songs

200 high-definition movies

41.6 hours of GoPro 4K footage

4.3 million MS Office documents

24+ PS4/Xbox games

Keeps the Power Flowing

Whether you’re taking a short break or are done for the day, the miniStack STX keeps you powering ahead. No matter if your machine or STX goes into sleep mode, the STX’s Thunderbolt ports continue to power and/or charge connected devices. Your notebook will stay charged and ready too with 96 watts of power through its Thunderbolt or USB-C connection.*4

Secure Your Connections

Unexpected disconnects during file transfers or a work session can be devastating. The OWC ClingOn (sold separately) easily reduces – if not eliminates – cable strain on the miniStack STX Thunderbolt connection ports.

Certified for Demanding Use

We understand having confidence in gear reliability is paramount to creative professionals. That’s why the miniStack STX goes through a multi-step performance certification prior to shipping. This ensures it arrives operating properly and immediately ready for your demanding use

OWC, Trusted by Pros & Enthusiasts the World Over

We build our hardware to the highest standards of reliability and performance. Because 100% reliability is always the goal, we rigorously quality test and back the miniStack STX with award-winning 24/7 global customer support.

28TB miniStack STX provides over 218x greater data storage than a 2018 Mac mini with factory equipped 128GB SSD.

Works with Thunderbolt (USB-C), Thunderbolt 2/Thunderbolt (mDP), and USB devices. Thunderbolt 2/Thunderbolt device support requires a certified Thunderbolt 3 (USB-C) to Thunderbolt 2 (mDP) Adapter and a Thunderbolt 2 cable (available separately) and provides data transfer at up to 20Gb/s.

Actual display support varies by computer specifications. Apple silicon M1 Pro, M1 Max, and M1 Ultra Mac models, Apple Intel-based Mac models, and Thunderbolt 4 PCs can support up to two external displays via Thunderbolt. Apple silicon M1 and M2 Mac models can support one external display via Thunderbolt.

Works with Thunderbolt 4, Thunderbolt 3, USB4, and USB host computers and devices. Thunderbolt 2/Thunderbolt Mac models are not supported.
- With a USB host connection, bandwidth is reduced to USB speeds, and additional functionality will vary depending upon the host computer and USB port. Thunderbolt devices are not supported.
- With a USB-C host connection, displays and power delivery will depend upon the host computer’s support for those functions.
- With a USB-A host connection, a USB-C to USB-A adapter cable (available separately) is required, and displays and power delivery are not supported.
- A USB host connection is required for Mac systems running macOS 10.14 or 10.15.

NVMe SSD usage requires a Thunderbolt (USB-C) host connection with a compatible system running macOS 11.x or later. USB host connectivity provides SATA drive use only, and limits additional miniStack STX ports to USB connectivity only.

Storage examples for illustrative purposes only. Individual results may be different based on variety of factors including specific file size and format, settings, features, software and other factors. Storage estimates based on: 12-megapixel camera with 4MB image sizes, 4-minute average 4MB MP3 songs, 4-minute average uncompressed Apple Lossless (ALAC) songs, 1080p HD videos with 5GB average file size, GoPro 4K footage at 60FPS 24GB/hr, 250KB average MS Office document file size, 40GB average game sizes.

Includes

(1) OWC miniStack STX Storage Enclosure (silver)
(1) 0.7M Thunderbolt (USB-C) Cable
(1) Quick Start Guide for OWC miniStack STX
(1) User Guide for OWC miniStack STX
1-Year OWC Limited Warranty