# External 2-bay 3.5" HDD enclosure FANTEC MB-X2U31H for 2× 3.5" drives, USB 3.1 connection

**URL:** https://aio.lv/en/product--fantec-2523--11648288
**Data updated:** 2026-02-16 07:00 (EET)
**Category:** HDD & SSD Enclosures and Mounting Brackets
**Manufacturer:** FANTEC
**Manufacturer code:** 2523
**EAN:** 4250273425239
**Warranty:** 2 Years
**Availability:** Out of stock

## Summary description

FANTEC MB-X2U31H is an external 2-bay enclosure for two 3.5" hard drives. It provides a USB 3.1 interface for fast data transfer between desktop-class HDDs and a PC or NAS. Designed for storage expansion, backup and media libraries, the enclosure lets you install and hot-swap two 3.5" drives, offering straightforward connectivity and convenient access to large-capacity storage.

## Long description

FANTEC MB-X2U31H is an external 2-bay enclosure for two 3.5" desktop hard drives with a USB 3.1 interface. The enclosure supports easy installation and hot-swapping of two 3.5" HDDs, enabling quick expansion of storage capacity for a PC or network-attached storage environment. Its USB 3.1 connection provides high-speed data transfers suitable for backups, media libraries and large file handling while keeping a compact, desktop-friendly form factor.
Advantages
The enclosure offers plug-and-play connectivity over USB 3.1 for fast file transfers and broad system compatibility without requiring additional drivers on most operating systems. Two hot-swappable bays allow independent insertion and removal of 3.5" drives, simplifying drive upgrades and maintenance. Its robust metal/plastic chassis protects installed drives and provides stable operation for continuous access to large-capacity storage. The design balances performance and convenience for users who need straightforward external storage expansion.
Suitable for
Expanding local storage on desktop PCs
Creating external backup solutions for large-capacity drives
Building a media library for video and audio files
Temporary migration or cloning of 3.5" HDDs
Use with home NAS or small-office file sharing setups
Key specifications
Drive bays: 2 × 3.5" SATA hard drives
Interface: USB 3.1 for host connection
Functionality: Hot-swappable drive support
Compatibility: Designed for desktop-class 3.5" HDDs
Cooling and protection: Enclosure chassis with passive/active cooling provisions
Power: External power adapter for stable operation of multiple HDDs
How to use
Install each 3.5" SATA hard drive into a bay according to the manufacturer's instructions, secure the drives in place, and connect the enclosure to a host computer using the supplied USB 3.1 cable. Attach the external power adapter and power on the unit; the host system should detect the drives as external storage devices. For drive removal, ensure any active read/write operations are finished and the drive is unmounted or ejected in the operating system before hot-swapping to avoid data loss.
Usage recommendations
Place the enclosure on a stable, well-ventilated surface and avoid exposing it to extreme temperatures or moisture. Use quality USB 3.1 cables and ensure the power adapter rating matches the enclosure’s requirements. Regularly back up important data and safely eject drives before removal to maintain drive integrity and data security.

## FAQ

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All FANTEC products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized FANTEC service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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