
CFNXKTWBR
CFNXKTWBR Dual M.2 NVMe PCIe x8 Expansion Adapter Card
Add two M Key NVMe SSDs through a single PCIe x8 slot for fast, consolidated desktop storage expansion
$106.44*
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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
Key Features
Memory Cards
Supports two M Key NVMe SSDs concurrently, PCIe bifurcation setting required in motherboard BIOS for normal use, high-speed data transmission, stable signal output, sturdy circuit board, perfect for PC high-speed storage expansion and file storage acceleration
Specifications
Brand
CFNXKTWBR
Product Type
Dual M.2 NVMe Expansion Adapter Card
Interface
PCIe x8
Drive Slots
Two M.2 M Key NVMe SSDs
Concurrent Support
Two drives simultaneously
Required Setting
PCIe bifurcation enabled in motherboard BIOS
Signal
Stable signal output
Board Construction
Sturdy circuit board
Intended Use
PC high-speed storage expansion and file storage acceleration
Frequently Asked Questions
Do I need PCIe bifurcation support to use both SSDs on this card?
Yes. The card requires PCIe bifurcation enabled in the motherboard BIOS for normal use, so both drives will only appear on boards that expose that setting.
How many drives can this adapter hold at once?
Two. It supports two M Key NVMe SSDs concurrently on a single card, letting you expand storage through one PCIe x8 slot.
What type of M.2 SSDs does this card accept?
It accepts M Key NVMe SSDs. The card is designed specifically for two M Key NVMe drives, so verify your SSD uses the M Key interface before installing.
What is this expansion card best suited for?
PC high-speed storage expansion and file storage acceleration. The manufacturer positions it for adding fast NVMe capacity and speeding up file-heavy tasks.
What interface does the card use to connect to the motherboard?
A PCIe x8 interface. Both drives route through this single connector, which the manufacturer describes as supporting high-speed data transmission.