# SSD Enclosure StarTech.com SM21BMU31C3

**URL:** https://aio.lv/en/product--startech-sm21bmu31c3--298405
**Data updated:** 2025-12-28 21:14 (EET)
**Category:** HDD & SSD Enclosures and Mounting Brackets
**Manufacturer:** StarTech
**Manufacturer code:** SM21BMU31C3
**EAN:** 0065030864435
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 42.49 €
**Prices and availability valid until:** 2026-07-19 23:59
**Price without VAT (21%):** 35.12 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-sm21bmu31c3--298405

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.99 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

The StarTech.com M.2 SSD Enclosure supports M.2 SATA SSDs with a USB 3.1 interface, offering data transfer rates of up to 10 Gbps. It features a sleek black and silver design and is compatible with one M.2 storage drive. The enclosure includes a Micro-USB B connector and is ideal for expanding storage or creating a portable SSD solution.

## Long description

The StarTech.com SM21BMU31C3 is a compact M.2 SATA SSD enclosure that converts an M.2 NGFF SATA drive into a portable USB-C external storage device. It supports USB 3.1 Gen 2 (up to 10 Gbps) and UASP for improved transfer performance, fits M.2 drive lengths 2230, 2242, 2260 and 2280, and features a slim aluminium housing with ventilation holes for heat dissipation. The enclosure is compatible with laptops, tablets and desktops that have USB-C or Thunderbolt 3 ports and includes the required USB-C cable.
Advantages
This enclosure provides high-speed external access to a single M.2 SATA SSD via a USB 3.1 Gen 2 connection with UASP support, enabling up to 10 Gbps throughput on compatible hosts. Its lightweight aluminium construction offers protection while remaining pocket-sized for portability, and ventilation holes aid thermal management during operation. Broad compatibility with multiple M.2 lengths (2230/2242/2260/2280) makes it suitable for most common M.2 SATA drives.
Suitable for
Expanding storage capacity for laptops and tablets with USB-C or Thunderbolt 3 ports
Creating a portable external SSD from an M.2 SATA drive
Transferring large files between computers at high speed
Using an existing M.2 SATA SSD as a backup or transportable archive
Key specifications
Model: StarTech.com SM21BMU31C3
Supported drive: 1 x M.2 SATA (NGFF) SSD
Supported lengths: 2230, 2242, 2260, 2280
Interface to host: USB 3.1 Gen 2 / USB 3.2 Gen 2 (up to 10 Gbps)
UASP support: Yes
Connector type: Micro-USB B (cable for USB-C included for host connection)
Material: Aluminium
Colour: Silver, Black
Weight: 0.061 kg
Warranty: 2 years (StarTech.com)
How to use
Open the enclosure following the included instructions, insert a compatible M.2 SATA (NGFF) SSD of a supported length (2230/2242/2260/2280), secure the drive, then close the enclosure. Connect the enclosure to a host device using the supplied USB-C cable or a compatible USB-C/Thunderbolt 3 port. The drive is bus-powered; no external power adapter is required. For optimal transfer speeds, connect to a host that supports USB 3.1 Gen 2 and UASP.
Usage recommendations
When using the enclosure for sustained large transfers, place it on a flat surface with some airflow around it to aid heat dissipation. Ensure the host supports USB 3.1 Gen 2 and enable UASP where supported to achieve best performance. Handle the M.2 SSD carefully during installation and observe anti-static precautions.

## Specifications

### Storage

| Feature | Value |
|---|---|
| Storage drive size | M.2 |
| Number of storage drives supported | 1 |
| Supported storage drive interfaces | M.2 |
| Supported storage drive lengths | 80 |

### Ports & interfaces

| Feature | Value |
|---|---|
| USB connector type | Micro-USB B |
| Integrated USB cable | No |
| USB version | 3.2 Gen 2 (3.1 Gen 2) |
| USB connectivity | Yes |
| USB ports quantity | 1 |
| USB connector gender | Female |

### Technical details

| Feature | Value |
|---|---|
| Sustainability certificates | RoHS |

### Design

| Feature | Value |
|---|---|
| Product type | SSD enclosure |
| Material | Aluminium |
| Product colour | Silver, Black |
| LED indicators | Power, Activity |
| Certification | CE, FCC, TAA, REACH |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.061 kg |
| Package weight | 139 g |
| Height | 13 mm |
| Width | 42 mm |
| Depth | 99 mm |
| Package depth | 131 mm |
| Package height | 32 mm |
| Package width | 161 mm |

### Power

| Feature | Value |
|---|---|
| Power source type | USB |

### Performance

| Feature | Value |
|---|---|
| Mean time between failures (MTBF) | 1000000 h |
| Chipset | ASMedia - ASM1351 |
| Plug and Play | Yes |
| Data transfer rate | 10 Gbit/s |
| UASP support | Yes |

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 10 - 90 |
| Storage temperature (T-T) | -10 - 65 |
| Operating temperature (T-T) | 0 - 40 |
| Storage relative humidity (H-H) | 5 - 95 |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | USB |
| Quick installation guide | Yes |
| Screws included | Yes |
| Screwdriver included | Yes |

### Logistics data

| Feature | Value |
|---|---|
| Harmonized System (HS) code | 84733080 |

## FAQ

### How much does the SSD Enclosure StarTech.com SM21BMU31C3 cost, and is it available for purchase?

The price is 42.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 25 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Cash payment, Bank transfer, Bank cards on-line, Apple Pay, Google Pay. 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 StarTech 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 StarTech 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: number of storage drives supported, storage drive size, usb version, weight, supported storage drive interfaces, usb connector type, material, product colour, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for SSD Enclosure StarTech.com SM21BMU31C3?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/298405/56902719_large.webp