# U.2 to PCIe Adapter StarTech.com PEX4SFF8639

**URL:** https://aio.lv/en/product--startech-pex4sff8639--344685
**Data updated:** 2025-12-28 21:16 (EET)
**Category:** I/O Adapters & Controllers
**Manufacturer:** StarTech
**Manufacturer code:** PEX4SFF8639
**EAN:** 065030872591
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 50.99 €
**Prices and availability valid until:** 2026-07-05 23:59
**Price without VAT (21%):** 42.14 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--startech-pex4sff8639--344685

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 19.06.2026 | free |
| Pickup points | 26.06.2026 | 1.99 EUR |
| Courier delivery to door | 26.06.2026 | 4.99 EUR |

## Summary description

The StarTech.com U.2 to PCIe Adapter allows you to connect a 2.5" U.2 NVMe SSD to your system via PCIe 4.0. It features a red design, LED activity indicators, and is CE and FCC certified. Dimensions: 122mm x 165mm x 22mm. Ideal for enhancing storage performance with high-speed data transfer capabilities.

## Long description

Mount a 2.5" U.2 NVMe SSD into a desktop computer or server using an available PCIe expansion slot. The U.2 to PCIe Adapter StarTech.com PEX4SFF8639 lets you install a 2.5" U.2 (SFF-8639) NVMe SSD directly onto a PCIe expansion card to add high-speed internal storage and improve system performance. The adapter supports x4 PCIe for ultra-fast data access and is compatible with PCIe 4.0 while remaining backward compatible with PCIe 3.0/2.0/1.0.
Advantages
The adapter provides direct connection of a U.2 NVMe SSD to the motherboard through an SFF-8639 connector, eliminating the need for a separate cable and reducing internal cable clutter. It supports full x4 PCIe bandwidth to take advantage of NVMe drive speeds and includes a full-profile bracket for standard desktop and server installations. The unit is compact, comes in a red finish with LED activity indicators, and is CE and FCC certified.
Suitable for
Adding high-speed internal NVMe storage to a desktop PC
Upgrading server storage with a 2.5" U.2 NVMe SSD
Systems with an available x4 (or larger) PCIe expansion slot
Environments where a cable-free internal SSD installation is preferred
Key specifications
Model: StarTech.com PEX4SFF8639 (U.2 to PCIe Adapter)
Host interface: PCIe (x4)
Output interface: U.2 (SFF-8639) for 2.5" NVMe SSDs
PCIe compatibility: PCIe 4.0; backward compatible with PCIe 3.0/2.0/1.0
Dimensions: 122 mm x 165 mm x 22 mm
Weight: 0.065 kg
Product colour: Red
Certifications: CE, FCC
How to use
Power down the computer and install the adapter into an available PCIe x4 (or larger) expansion slot on the motherboard. Secure the full-profile bracket to the chassis, then mount the 2.5" U.2 NVMe SSD onto the adapter and connect it to the SFF-8639 port on the card. After confirming the physical installation, power on the system and verify that the motherboard recognizes the NVMe drive in BIOS/UEFI or the operating system. No external adapter cable is required for the connection.
Usage recommendations
For optimal performance, install the adapter in a PCIe 4.0 slot when available and ensure the system BIOS/UEFI and drivers are up to date. Allow adequate airflow around the drive and adapter to maintain thermal performance when using high-speed NVMe SSDs.

## Specifications

### Operational conditions

| Feature | Value |
|---|---|
| Operating relative humidity (H-H) | 15 - 90 |
| Storage temperature (T-T) | -25 - 70 |
| Operating temperature (T-T) | 5 - 50 |

### Technical details

| Feature | Value |
|---|---|
| Compliance certificates | RoHS |

### Ports & interfaces

| Feature | Value |
|---|---|
| Host interface | PCIe |
| Output interface | U.2 |
| Expansion card standard | PCIe 4.0 |

### Weight & dimensions

| Feature | Value |
|---|---|
| Weight | 0.065 kg |
| Package weight | 161 g |
| Height | 22 mm |
| Width | 122 mm |
| Depth | 165 mm |

### Design

| Feature | Value |
|---|---|
| Internal | Yes |
| Product colour | Red |

### Performance

| Feature | Value |
|---|---|
| Certification | CE, FCC |
| LED indicators | Activity |
| Hot-swap | No |

### Logistics data

| Feature | Value |
|---|---|
| Master (outer) case height | 490 mm |
| Master (outer) case width | 340 mm |
| Master (outer) case length | 450 mm |
| Products per master (outer) case | 40 pc(s) |
| Harmonized System (HS) code | 84733020 |

### Packaging data

| Feature | Value |
|---|---|
| Package depth | 220 mm |
| Package height | 45 mm |
| Package width | 160 mm |
| Quick installation guide | Yes |
| Screws included | Yes |

### Features

| Feature | Value |
|---|---|
| Plug and Play | Yes |

## FAQ

### How much does the U.2 to PCIe Adapter StarTech.com PEX4SFF8639 cost, and is it available for purchase?

The price is 50.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 36 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 19.06.2026 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: 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 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: host interface, weight, internal, output interface, 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 U.2 to PCIe Adapter StarTech.com PEX4SFF8639?

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/344685/65746307_large.webp