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Main image of AJMRTC TKM8 M.2 M-Key to OCuLink SFF-8612 Female Bridge Card, PCIe 4.0 X4 Adapter, for NVMe U.2 SSD and External Graphics eGPU Dock, Horizontal OCuLink Port

Alt view image 2 of 7 - AJMRTC TKM8 M.2 M-Key to OCuLink SFF-8612 Female Bridge Card, PCIe 4.0 X4 Adapter, for NVMe U.2 SSD and External Graphics eGPU Dock, Horizontal OCuLink Port

Alt view image 3 of 7 - AJMRTC TKM8 M.2 M-Key to OCuLink SFF-8612 Female Bridge Card, PCIe 4.0 X4 Adapter, for NVMe U.2 SSD and External Graphics eGPU Dock, Horizontal OCuLink Port

Alt view image 4 of 7 - AJMRTC TKM8 M.2 M-Key to OCuLink SFF-8612 Female Bridge Card, PCIe 4.0 X4 Adapter, for NVMe U.2 SSD and External Graphics eGPU Dock, Horizontal OCuLink Port

Alt view image 5 of 7 - AJMRTC TKM8 M.2 M-Key to OCuLink SFF-8612 Female Bridge Card, PCIe 4.0 X4 Adapter, for NVMe U.2 SSD and External Graphics eGPU Dock, Horizontal OCuLink Port

Alt view image 6 of 7 - AJMRTC TKM8 M.2 M-Key to OCuLink SFF-8612 Female Bridge Card, PCIe 4.0 X4 Adapter, for NVMe U.2 SSD and External Graphics eGPU Dock, Horizontal OCuLink Port

Alt view image 7 of 7 - AJMRTC TKM8 M.2 M-Key to OCuLink SFF-8612 Female Bridge Card, PCIe 4.0 X4 Adapter, for NVMe U.2 SSD and External Graphics eGPU Dock, Horizontal OCuLink Port

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AJMRTC TKM8 M.2 M-Key to OCuLink SFF-8612 Female Bridge Card, PCIe 4.0 X4 Adapter, for NVMe U.2 SSD and External Graphics eGPU Dock, Horizontal OCuLink Port

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- TKM8 horizontal layout design, OCuLink SFF-8612 female connector
- PCIe 4.0 x4 bandwidth up to 64Gbps, backward compatible with PCIe 3.0
- Dual use: support U.2 NVMe SSD storage expansion and external eGPU graphics dock
- Fits M.2 M-Key SSD sizes: 2230, 2242, 2260, 2280
- Native PCIe signal, low latency, ideal for laptop, mini PC and handheld device upgrade

Overview

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AJMRTC TKM8 M.2 M-key to OCuLink SFF-8612 bridge adapter converts your M.2 M-key slot into an OCuLink 4i female port. It runs on PCIe 4.0 x4, supporting both U.2 NVMe SSD and external GPU dock. Horizontal port layout saves internal chassis space. It delivers native PCIe transmission with less performance drop, widely used for laptop eGPU modification, mini PC high-speed storage and handheld gaming device expansion. Hot swap is not supported.

Specifications

Brand: AJMRTC
Model: TKM8
Host Interface: M.2 M-Key
Output Interface: OCuLink SFF-8612 Female
PCIe Spec: PCIe 4.0 x4, backward compatible PCIe 3.0
Bandwidth: Max 64Gbps
Supported M.2 Size: 2230 / 2242 / 2260 / 2280
Supported Device: U.2 NVMe SSD, eGPU Dock
Mount Style: Horizontal OCuLink Port
Protocol: PCIe / NVMe
Hot Swap: Not Supported
Compatible OS: Windows, Linux

Additional Information
First Listed on Newegg	October 29, 2026

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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#: 9SIC9FFM9N1065