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Main image of AJMRTC PCIe 4.0 X8 to X16 Riser Adapter Board, GEN4 High-Speed Converter, Gold-Plated Contacts, Impedance Controlled PCB, Lets X16 PCIe Cards Run on X8 Host Slot for GPU, Capture Card, Network Card

Alt view image 2 of 5 - AJMRTC PCIe 4.0 X8 to X16 Riser Adapter Board, GEN4 High-Speed Converter, Gold-Plated Contacts, Impedance Controlled PCB, Lets X16 PCIe Cards Run on X8 Host Slot for GPU, Capture Card, Network Card

Alt view image 3 of 5 - AJMRTC PCIe 4.0 X8 to X16 Riser Adapter Board, GEN4 High-Speed Converter, Gold-Plated Contacts, Impedance Controlled PCB, Lets X16 PCIe Cards Run on X8 Host Slot for GPU, Capture Card, Network Card

Alt view image 4 of 5 - AJMRTC PCIe 4.0 X8 to X16 Riser Adapter Board, GEN4 High-Speed Converter, Gold-Plated Contacts, Impedance Controlled PCB, Lets X16 PCIe Cards Run on X8 Host Slot for GPU, Capture Card, Network Card

Alt view image 5 of 5 - AJMRTC PCIe 4.0 X8 to X16 Riser Adapter Board, GEN4 High-Speed Converter, Gold-Plated Contacts, Impedance Controlled PCB, Lets X16 PCIe Cards Run on X8 Host Slot for GPU, Capture Card, Network Card

Shop All AJMRTC Products | Visit ‌ConnectFlow USA Store

AJMRTC PCIe 4.0 X8 to X16 Riser Adapter Board, GEN4 High-Speed Converter, Gold-Plated Contacts, Impedance Controlled PCB, Lets X16 PCIe Cards Run on X8 Host Slot for GPU, Capture Card, Network Card

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- Converts X8 PCIe host slot to accept standard M-Key X16 PCIe devices
- PCIe 4.0 full speed supported, backward compatible with PCIe 3.0
- Strict impedance control and gold-plated fingers for stable high-speed signal
- Works for graphics card, video capture card, network card and other standard PCIe peripherals
- Simple DIY installation, ideal for server, workstation and case modification

Overview

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AJMRTC PCIe 4.0 X8 to X16 riser board is a handy adapter for PC hardware modification. It allows you to install full-size X16 PCIe cards into an X8 motherboard slot, running at X8 bandwidth. The optimized PCB layout reduces signal attenuation and avoids dropouts under heavy load. It is widely used for GPU upgrades, video capture work, 10G network card installation and server expansion. Please confirm your motherboard supports PCIe lane configuration before installation.

Specifications

Brand: AJMRTC
Standard: PCIe 4.0, backward compatible with PCIe 3.0
Host: PCIe X8
Device Slot: PCIe X16 M-Key
Contact: Gold-plated
Supported Cards: Graphics Card, Video Capture Card, Network Card, NVMe Adapter
Application: Workstation, Server, PC DIY Modification
Package Content: 1 x PCIe X8 to X16 Riser Board, Mounting Screw, User Manual

Additional Information
First Listed on Newegg	November 03, 2026

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
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Return Policies

Return for refund within: 30 days
Return for replacement within: non-replaceable
This item is covered by ‌ConnectFlow USA Return Policy

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Item#: 9SIC9FFM9T5815