---
product_id: 51249262
title: "StarTech.com PEX4SFF8639 U.2 to PCIe Adapter"
brand: "startech.com"
price: "360 Lei"
currency: RON
in_stock: true
reviews_count: 13
category: "Star Tech.Com"
url: https://www.desertcart.ro/products/51249262-startech-com-pex4sff8639-u-2-to-pcie-adapter
store_origin: RO
region: Romania
---

# PCIe 4.0 x4 lanes for blazing speed Direct U.2 NVMe SSD mount, no cables Plug & play with PCIe 3.0/2.0 backward compatibility StarTech.com PEX4SFF8639 U.2 to PCIe Adapter

**Brand:** startech.com
**Price:** 360 Lei
**Availability:** ✅ In Stock

## Summary

> 🚀 Upgrade your storage game—speed, simplicity, and style in one sleek adapter!

## Quick Answers

- **What is this?** StarTech.com PEX4SFF8639 U.2 to PCIe Adapter by startech.com
- **How much does it cost?** 360 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/51249262-startech-com-pex4sff8639-u-2-to-pcie-adapter)

## Best For

- startech.com enthusiasts

## Why This Product

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

## Key Features

- • **Universal Compatibility:** Works effortlessly with PCIe 3.0 and 2.0 motherboards, ensuring your upgrade fits perfectly into your existing setup.
- • **Compact & Streamlined Build:** Slim 6.5 x 4.8 inch form factor fits neatly inside desktops and servers, optimizing space without sacrificing performance.
- • **Trusted StarTech Reliability:** Backed by a top-tier brand with 4.5-star reviews, this adapter is the go-to choice for professionals demanding speed and stability.
- • **Cable-Free Direct Mount Design:** Simplify your build with a sleek adapter that mounts your 2.5" U.2 NVMe SSD directly—no messy cables, no clutter.
- • **Blazing PCIe 4.0 x4 Performance:** Unlock ultra-fast data transfer speeds up to 1750 MB/s and beyond for seamless multitasking and rapid file access.

## Overview

The StarTech.com PEX4SFF8639 is a high-performance PCIe 4.0 x4 adapter that enables direct mounting of 2.5" U.2 NVMe SSDs into desktops or servers. It boosts system speed with ultra-fast data transfer rates, eliminates cable clutter with a direct mount design, and offers broad compatibility with PCIe 3.0 and 2.0 motherboards. Ideal for professionals seeking a reliable, compact, and efficient storage upgrade solution.

## Description

desertcart.com: StarTech.com PEX4SFF8639 U.2 to PCIe Adapter : Electronics

Review: Works so good I bought a 2nd adapter for another PC. - Very good product and operates ass described. Bought a 2nd assembly to use in another PC. Used a enclosure with NVMe SSD and stays cool too. I'd use this and recommend to others who desire storage inside PC with 1300-1750 mbs transfer rates. Pics, videos load fast. Have a Blessed Day! :)
Review: works very well for 61Tb U2 drive - I used another card before buying this one, this card works well, note that it is PCI 3 and backward compatible

## Features

- Mount a 2.5" U.2 NVMe SSD into your desktop computer or server, using an available PCIe expansion slot
- Boost system speed and performance by adding a PCIe NVMe U.2 SSD to your PC
- Simplify system builds with a U.2 to PCIe adapter that mounts your SSD directly to the adapter with no need for adapter cables. Utilize the advanced performance of a PCIe NVMe 2.5 in. SSD for intensive data workloads.
- PCI Express 4.0 x4 lane host adapter / Compatible with PCIe 3.0/2.0 motherboards
- NVMe PCIe Adapter / PCIe NVMe SSD Adapter / SFF-8639 PCIe Adapter / U.2 PCIe Card / PCIe SSD / U.2 SSD PCIe Adapter

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B072JK2XLC |
| Best Sellers Rank | #88 in Computer Memory Card Adapters |
| Brand | StarTech.com |
| Built-In Media | drive adapter card (1), drive-mounting screws (4), quick-start guide (1) |
| Compatible Devices | The U.2 to PCIe adapter is compatible with PCIe 3.0 motherboards and is also backward compatible with PCIe 2.0 and PCIe 1.0. |
| Customer Reviews | 4.7 4.7 out of 5 stars (139) |
| Global Trade Identification Number | 00065030872591 |
| Hardware Interface | PCI |
| Item Dimensions L x W x H | 6.5"L x 4.8"W x 0.9"H |
| Item Type Name | U.2 to PCI Express Adapter |
| Item Weight | 0.07 Kilograms |
| Manufacturer | StarTech.com |
| Mfr Part Number | PEX4SFF8639 |
| Model Number | PEX4SFF8639 |
| Operating System | Not Specified |
| Style Name | PCIe |
| UPC | 065030872591 |
| Unit Count | 1.0 Count |
| Warranty Description | 2 Years |

## Product Details

- **Brand:** StarTech.com
- **Hardware Interface:** PCI
- **Item Weight:** 0.07 Kilograms
- **Product Dimensions:** 6.5"L x 4.8"W x 0.9"H
- **Style:** PCIe

## Images

![StarTech.com PEX4SFF8639 U.2 to PCIe Adapter - Image 1](https://m.media-amazon.com/images/I/61vrk5nB6HL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works so good I bought a 2nd adapter for another PC.
*by C***D on April 24, 2025*

Very good product and operates ass described. Bought a 2nd assembly to use in another PC. Used a enclosure with NVMe SSD and stays cool too. I'd use this and recommend to others who desire storage inside PC with 1300-1750 mbs transfer rates. Pics, videos load fast. Have a Blessed Day! :)

### ⭐⭐⭐⭐⭐ works very well for 61Tb U2 drive
*by G***J on September 23, 2025*

I used another card before buying this one, this card works well, note that it is PCI 3 and backward compatible

### ⭐⭐⭐⭐⭐ Works as expected, note compatibility issues.
*by M***E on April 19, 2021*

Mated this to a Micron 9100 SSD. It works just fine with my Desktop PC. Simply plug and play. However, when I tried installing on my server PC. Dell T420, I didn't have any luck. the PC threw a hardware error. I then tried an alternative solution with a different card that makes use of a cable to connect to the drive with the added benefit of dedicated power. However, that approach also failed to work, the server threw the same error. Looks like some machines will run into a hardware compatibility issue with the drive itself as opposed to the adapter. Would be nice to know how to trouble shoot or address this type of issue.

## Frequently Bought Together

- StarTech.com PEX4SFF8639 U.2 to PCIe Adapter
- GLOTRENDS PU11 U.2 to PCIe 4.0 X4 Adapter for 2.5 Inch U.2 SSD, PCIe 4.0 X4 Full Speed
- Dilinker 𝐃𝐢𝐋𝐢𝐧𝐤𝐞𝐫 𝐌.𝟐 𝐭𝐨 𝐔.𝟐 𝐍𝐕𝐌𝐞 SSD, 𝐒𝐅𝐅-𝟖𝟔𝟑𝟗 Drive to 𝐌.𝟐 Host Adapter,U.2 SSD Converter -with Power Cable(50CM)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-05-07*