
U.2 NVMe Interchange System
for Mercury Helios 3S
Assembly Manual & User Guide
Install up to 16TB
U.2 NVMe SSD
Designed for
global workows
Locking drive bay

CONTENTS
Introduction
1.1 Minimum System Requirements .............................................. 1
- Mac Requirements
- PC Requirements
1.2 Package Contents ..................................................................... 1
1.3 About This Manual .................................................................... 1
1.4 Rear View ................................................................................... 2
1.5 Usage Notes .............................................................................. 3
Device Setup
2.1 Assembly Steps ........................................................................ 4
Support Resources
3.1 Formatting ............................................................................... 10
3.2 Troubleshooting ...................................................................... 10
3.3 About Data Backup ................................................................. 10
3.4 Contacting Technical Support ................................................ 10
U.2 NVMe Interchange System for Mercury Helios 3S Contents

INTRODUCTION
1.1 Minimum System Requirements
Mac Requirements
- macOS 10.14.5 or later
PC Requirements
- Windows 10 or later
Hardware
- OWC Mercury Helios 3S
- Mac or PC with a Thunderbolt 3 port
Supported U.2 Drives
- 2.5-inch U.2 NVMe SSD drive with a PCIe interface
- SATA or SAS drives are not supported
- Hot-swap is not supported (Disconnect the Mercury Helios 3S to swap the drive)
1.2 Package Contents
U.2 NVMe Interchange System
for Mercury Helios 3S
Quick Start Guide
1.3 About This Manual
The images and descriptions may vary slightly between this manual and the unit shipped. Functions
and features may change depending on the rmware version. The latest product details and warranty
information can be found on the product web page. OWC’s Limited Warranty is not transferable and
subject to limitations.
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U.2 NVMe Interchange System for Mercury Helios 3S Introduction

General Use Precautions
To avoid damage, do not expose the device to temperatures outside:
- Environmental (Operating)
- Temperature (ºF): 41º — 95º
- Temperature (ºC): 5º — 35º
- Environmental (Non-Operating)
- Temperature (ºF): -4º — 140º
- Temperature (ºC): -20º — 60º
- Protect your device from excessive exposure to dust during use or storage. Dust can build
up inside the device, increasing the risk of damage or malfunction.
- Do not block any ventilation openings on the device. These help to keep the device cool
during operation. Blocking the ventilation openings may cause damage to the device and
cause an increased risk of short-circuiting or re.
Safety Precautions
- Read this guide carefully and follow the recommended steps for assembly.
- Use proper anti-static precautions while installing this device. Failure to do so can cause
damage to your drive and/or the PCIe enclosure.
- Do not attempt to disassemble or modify the device. To avoid any risk of electrical shock,
re, short-circuiting or dangerous emissions, never insert any metallic object into the
device. If it appears to be malfunctioning, please contact technical support.
- Never expose your device to rain or use it near water or in damp or wet conditions. Never
place objects containing liquids on the device, as they may spill into its openings. Doing so
increases the risk of electrical shock, short-circuiting, re or personal injury.
1.4 Rear View
1. Security lock – use the included keys to unlock
or secure the U.2 drive carrier tray to the Mercury
Helios 3S.
2. Security slot – connect a security tether here.
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U.2 NVMe Interchange System for Mercury Helios 3S Introduction