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OWC ThunderBay 4 with
Thunderbolt 3
Support Manual
Introduction
1.1 System Requirements
Operating System
Mac
: macOS 10.14 or later

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Table of Contents
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Summary of Contents for OWC ThunderBay 4

  • Page 1 OWC ThunderBay 4 with Thunderbolt 3 Support Manual Introduction 1.1 System Requirements Operating System • : macOS 10.14 or later...
  • Page 2: Package Contents

    • Legacy, since June 2024, OWC ThunderBay 4 devices support macOS 10.12 and later • : Windows 10 or later Hardware • Mac or PC with Thunderbolt 3 or later Supported Drives • Any 3.5-inch or 2.5-inch SATA drives 1.2 Package Contents •...
  • Page 3 Device Status LEDs. The Security Faceplate needs to be removed for access. See for instructions. E. (4) Drive Bays Legacy OWC ThunderBay 4 *Legacy since June 2024 Security Faceplate Lock – Use the included keys to lock or unlock the faceplate for access to the drive bays.
  • Page 4: Rear View

    Drive Status LEDs 1.4 Rear View Current OWC ThunderBay 4 *Current since June 2024 A. – Connect the power cable to power the device B. Power Switch – Engage and disengage power to the device...
  • Page 5 D. (2) – Affix ClingOn to help prevent accidental cable disconnections ( sold separately E. (2) Thunderbolt 3 ports – Connect to a compatible host or chain additional Thunderbolt 3 devices Legacy OWC ThunderBay 4 *Legacy since June 2024 Kensington Security slot – Attach a Kensington Security lock Thunderbolt 3 ports –...
  • Page 6: Getting Started

    Getting Started 2.1 Device Setup • This section describes the process of setting up the OWC ThunderBay 4 if purchased with pre-installed drives. The OWC ThunderBay 4 is available assembled with (4) SATA HDDs configured as an OWC SoftRAID RAID 5.
  • Page 7 Windows OWC SoftRAID Setup • If you are using the OWC ThunderBay 4 with the Windows operating system, the pre-installed drives need to be reconfigured before they can be used. The following options will allow the Mac formatted OWC ThunderBay 4 to work as a Windows formatted device.
  • Page 8: Assembly Steps

    2.2 Assembly Steps This section describes the process of installing drives into the OWC ThunderBay 4 if purchased as a bare enclosure. 1. Insert one of the keys into the lock on the top left of the security faceplate.
  • Page 9 3. Pull up on the faceplate to remove it. 4. On the drive tray you wish to remove, turn the thumbscrew counter-clockwise until you no longer feel resistance. Then hold onto the thumbscrew and pull the drive tray out...
  • Page 10 5. Set the drive tray as shown on your work surface. If you are replacing an existing hard drive, unscrew it from the drive tray at this time. Note: the highlighted screw holes are for 2.5-inch drives. The holes for 3.5-inch drives are highlighted in green (Step 7). 6.
  • Page 11 7. Fasten the drive into the drive tray using six of the included screws (three per side) 8. Slide the drive tray back into the rails in the ThunderBay 8 and push until it is seated fully, then push in on the thumbscrew and turn it clockwise until it stops turning. If you encounter resistance, do not force the drive tray.
  • Page 12: Raid Configuration Options

    SoftRAID and the bundled Premium Access. • SoftRAID will assist with formatting the installed drives and setting up a RAID volume. • NOTE : The OWC SoftRAID license is located on the bottom of the OWC ThunderBay 4. Mac OWC SoftRAID Setup...
  • Page 13 • Please review and follow the steps outlined in OWC SoftRAID Installation for Mac • Please review and follow the instructions outlined in Creating a macOS OWC SoftRAID Volume Windows OWC SoftRAID Setup • Download OWC SoftRAID for Windows •...
  • Page 14: Device Management

    • Concatenated (JBOD) set: Increase storage space with a concatenated disk set If you need one large disk, but you have several smaller disks, you can create a concatenated disk set to use as one large disk. Select the checkboxes of the disks you want to include in the set. For each disk, click the pop-up menu in the Role column and choose “RAID slice”...
  • Page 15: Replacing Drives

    • If the OWC ThunderBay 4 was configured as a RAID 0, the data on the array is lost and the disk is no longer usable. • If the OWC ThunderBay 4 was configured as a RAID 5, the RAID card will alert the user with a beeping tone.
  • Page 16: Usage Notes

    3.5 Usage Notes • The OWC ThunderBay 4 received several feature changes in June 2024 with the removal of the Display Port and addition of a LED Status Switch. Devices purchased before June 2024 are considered legacy while devices purchased in June 2024 and...
  • Page 17: Support Resources

    Begin your troubleshooting by verifying that the power cable is connected to the ThunderBay 4 and to a power source. If the power cable is connected to a power strip, make sure that the power switch on the strip is turned on. Then, verify that both ends of your cables are properly plugged into the computer and the OWC ThunderBay 4.
  • Page 18: About Data Backup

    To ensure that your files are protected and to prevent data loss, we strongly suggest that you keep two copies of your data: one copy on your ThunderBay 4 and a second copy on either your internal drive or another storage medium, such as an optical backup, or on another external storage unit.
  • Page 19: Terms And Conditions Of Sale

    To avoid any risk of electrical shock, short-circuiting, fire, or dangerous emissions, never insert any metallic object into the device. • Please cease use of the device and contact OWC Support if it appears to be malfunctioning. Terms & Conditions of Sale...
  • Page 20: Warranty

    OWC reserves the right to make changes or revisions in the product design or the product manual without reservation and without obligation to notify any person of such revisions and changes.
  • Page 21: Copyrights And Trademarks

    Copyrights and Trademarks © 2023 Other world Computing, Inc. All rights reserved. OWC, the OWC logo, and ThunderBay are trademarks of New Concepts Development Corporation, registered in the U.S. and/or other countries. Mac and macOS are trademarks of Apple Inc., registered in the U.S.

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Thunderbolt 3Thunderbay 8

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