CFNXKTWBR

CFNXKTWBR PCIe 4.0 Dual M.2 NVMe SSD Adapter Card

Turn one open PCIe 4.0 x8 slot into a home for two NVMe SSDs running at full speed simultaneously

$144.10*
In Stock on Amazon.com
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*Price sourced from Amazon.com. Last updated:Aug 18, 2026.Price and availability are subject to change — details.

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Overview

The CFNXKTWBR PCIe 4.0 x8 adapter is a specialist's tool aimed at builders who have run out of M.2 slots but still want to add fast NVMe storage. Rather than a single-drive riser, it carries two NVMe SSDs on one board and allows both to operate at the same time. Because it rides on PCIe 4.0's higher bandwidth, the card is positioned for tasks where speed matters as much as capacity, such as large file processing and high-speed storage expansion. It is the kind of part that solves a specific problem cleanly rather than trying to appeal to everyone.

On the practical side, the card is designed to keep ownership uncomplicated. It supports M.2 drives in 2260, 2280, and 22110 lengths, covering the sizes most enthusiasts are likely to have on hand. Reliable circuit shielding is called out as a measure to keep read-write performance stable, an important consideration when two drives are active together. The manufacturer describes the mounting process as simple, which suggests the physical install is meant to be quick for anyone who has seated an expansion card before. Buyers should confirm their motherboard offers a compatible x8 or x16 slot, since that is the one hard requirement this card places on a system before it can deliver its dual-drive expansion.

Key Features

Memory Cards

PCIe 4.0 high bandwidth enables simultaneous operation of two NVMe SSDs, compatible with multiple lengths of M.2 solid drives, stable read-write performance, reliable circuit shielding, simple mounting, great for PC high-speed storage expansion and large file processing tasks

Specifications

Brand
CFNXKTWBR
Interface
PCIe 4.0 x8
Drive Type
M.2 NVMe SSD
Drives Supported
Two (simultaneous operation)
Supported M.2 Lengths
2260 / 2280 / 22110
Shielding
Circuit shielding for signal stability
Installation
Simple mounting
Intended Use
High-speed storage expansion, large file processing

Frequently Asked Questions

Two. The card is built to host two NVMe SSDs on a single board and lets both drives operate simultaneously over its PCIe 4.0 x8 interface.
It supports M.2 solid state drives in 2260, 2280, and 22110 lengths, covering the most common form factors enthusiasts are likely to own.
A free PCIe 4.0 x8 slot is required, though it will also seat in a wider x16 slot. Confirm your motherboard has an available slot before buying.
Yes. The listing highlights reliable circuit shielding intended to keep read-write performance stable when both NVMe drives are working at the same time.
It is aimed at high-speed storage expansion and large file processing, making it a fit for builders who need extra fast NVMe capacity on one card.