---
product_id: 464772511
title: "OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution"
brand: "owc"
price: "HK$8837"
currency: HKD
in_stock: true
reviews_count: 5
url: https://www.desertcart.hk/products/464772511-owc-mercury-helios-3s-thunderbolt-3-pcie-expansion-solution
store_origin: HK
region: Hong Kong
---

# 40Gbps speed 2 Thunderbolt 3 ports 8K display support OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution

**Brand:** owc
**Price:** HK$8837
**Availability:** ✅ In Stock

## Summary

> ⚡ Elevate Your Workflow with OWC Mercury Helios 3S!

## Quick Answers

- **What is this?** OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution by owc
- **How much does it cost?** HK$8837 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/products/464772511-owc-mercury-helios-3s-thunderbolt-3-pcie-expansion-solution)

## Best For

- owc enthusiasts

## Why This Product

- Trusted owc brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Visual Brilliance:** Connect to an 8K display via DisplayPort 1.4 for stunning visuals.
- • **Seamless Connectivity:** Equipped with (2) Thunderbolt 3 ports for versatile device connections.
- • **Tool-Free Installation:** Enjoy hassle-free card installations with no tools required.
- • **Unleash Your Potential:** Experience lightning-fast 40Gbps transfer speeds that redefine productivity.
- • **Power Up While You Work:** Charge your notebook with 85W while you multitask effortlessly.

## Overview

The OWC Mercury Helios 3S is a cutting-edge Thunderbolt 3 PCIe expansion solution designed for professionals seeking high-speed data transfer and versatile connectivity. With its ability to support up to 8K displays and tool-free card installations, this device is perfect for enhancing your workstation while keeping your devices charged.

## Description

OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution

## Features

- Lightning-fast 40Gbps transfer speeds: (2) Thunderbolt 3 ports
- Play your card: physical slot and enclosure support cards up to half-length, full-height, double-width
- See more: DisplayPort 1.4 for connecting up to an 8K display
- Easy card installs: No tools required
- Charge while working: 85W of notebook charging

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Brand | OWC |
| Manufacturer | Other World Computing |
| Model | OWCHELIOS3S |
| Product Dimensions | 14.3 x 14.3 x 8.2 cm; 1.6 Kilograms |
| Item model number | OWCHELIOS3S |
| Digital storage capacity | 40 GB |
| Operating System | Mac OS |
| Hardware Interface | Thunderbolt |
| Compatible Devices | Laptops, Desktops |
| Audio Wattage | 150 Watts |
| Wattage | 150 Watts |
| Batteries Included | No |
| Batteries Required | No |
| Number of Ports | 3 |
| Manufacturer | Other World Computing |
| Item Weight | 1 kg 600 g |

## Product Details

- **Brand:** OWC
- **Color:** Enclosure
- **Compatible Devices:** Desktops, Laptops
- **Hardware Interface:** Thunderbolt
- **Special Feature:** Play, Plug

## Images

![OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution - Image 1](https://m.media-amazon.com/images/I/51qnp1z4rRL.jpg)
![OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution - Image 2](https://m.media-amazon.com/images/I/51AfhOiURRL.jpg)
![OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution - Image 3](https://m.media-amazon.com/images/I/61W4MVAfDOL.jpg)
![OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution - Image 4](https://m.media-amazon.com/images/I/41I3bgq2EcL.jpg)
![OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution - Image 5](https://m.media-amazon.com/images/I/41JKwlETjfL.jpg)

## Available Options

This product comes in different **Colour** options.

## Questions & Answers

**Q: Will this expansion solution support atto h680 sas card to connect to a lto via thunderbolt 3 port?**
A: Hi,

There's only SAS Connectivity.
It doesn't have a thunderbolt Connectivity.

Thanks.

## Customer Reviews

### ⭐⭐⭐⭐⭐ 







  
  
    Nice for like adding a External Capture Card like the Elgato
  

*by T***H on Reviewed in the United States on 29 January 2024*

OWC specifies that this will work with PCIex Firewire cards BUT, Does not mention that if your planning on using this with ANY 1394 Firewire Card that if running your running a 12th Gen Intel Based CPU or Higher that Wonderful Intel Killed the 1394b PCIex Support altogether which was one of the reasons I had got this, NOW, it's a $250 Paper weight that only so an so works for certain PCIex card, Definitely not graphics cards if thats what your thinking about using this for. Originally, I had got this to use with a PCIex 1394 Firewire Card to use with my 13th Gen Intel I7 Lenovo Computer, Now I can't even do that which SUX!!!!

### ⭐⭐⭐ 







  
    No fue lo que esperaba
  
  

*by M***. on Reviewed in Mexico on 17 October 2022*

Esperaba que pudiera ser compatible con una GPU pero no es compatible y ahora no la puedo regresar, y necesito darle otro uso.

### ⭐⭐⭐⭐⭐ 







  
    très bon matériel
  
  

*by R***O on Reviewed in France on 13 December 2023*

Reçu rapidement et fonctionne très bien. Ne chauffe pas et prise en charge de la carte vidéo sans problème. Raccordé sur un mini ordinateur sur sa prise thunderbolt 4, tout fonctionne parfaitement.

## Frequently Bought Together

- OWC Mercury Helios 3S Thunderbolt 3 PCIe Expansion Solution
- Cable Matters [Intel Certified] 40Gbps Thunderbolt 4 Cable 3.3ft with 8K Video and 240W Charging - 1m, Compatible with USB4, Thunderbolt 3 Cable and USB-C

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**Shop now:** [https://www.desertcart.hk/products/464772511-owc-mercury-helios-3s-thunderbolt-3-pcie-expansion-solution](https://www.desertcart.hk/products/464772511-owc-mercury-helios-3s-thunderbolt-3-pcie-expansion-solution)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-02-27*