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EXLink MB309A5

M.2 NVMe SSD PCIe 5.0 x4 to MCIO 4i Adapter with Redriver
Product Details
  • Enable a Modular Removable NVMe Storage Architecture
    The ICY DOCK EXLink MB309A5 is a high-performance M.2 NVMe to MCIO 4i PCIe adapter card designed to bridge embedded M.2 SSD slots and professional-grade NVMe removable storage solutions. Supporting PCIe Gen5 x4 bandwidth with transfer speeds up to 128Gbps, the MB309A5 enables system integrators and workstation builders to create a seamless, high-speed, and modular NVMe workflow using ICY DOCK’s mobile racks and certified cables - eliminating compatibility guesswork and multi-vendor sourcing challenges.
  • Next-Generation PCIe 5.0 Performance
    Built on PCIe Gen5 x4 bandwidth, the EXLink MB309A5 delivers up to 128Gbps of theoretical throughput, doubling the bandwidth of PCIe Gen4 solutions. This makes the MB309A5 ideal for bandwidth-intensive workloads such as AI training, real-time analytics, high-speed caching, and next-generation NVMe storage expansion.
  • Advanced Redriver & Signal Conditioning for PCIe 5.0 NVMe Performance
    The EXLink MB309A5 is equipped with a PCIe Gen5 redriver and a 100MHz PCIe clock buffer, engineered to maintain signal clarity and stability over long PCB traces and MCIO cable runs. Unlike standard adapter cards that may suffer from signal loss or speed throttling as trace or cable distance increases, the MB309A5 ensures stable PCIe 5.0 transfer rates up to 128Gbps, making it ideal for high-performance applications that demand full-speed NVMe connectivity.
  • Additional embedded signal conditioning features include:
    • Redriver IC ensures clean high-speed signal
    • 100MHz PCIe clock buffer extends trace length
    • Bus buffer gates support PERST#/WAKE#/CLKREQ# signaling
    • SMBus repeater for stable device management

    Even under intense workloads, these features help maintain signal integrity and reliable system operation.

  • Flexible NVMe Integration Powered by the EXLink Ecosystem

    The MB309A5 is a key part of ICY DOCK’s EXLink ecosystem, designed to simplify the deployment of removable NVMe SSD solutions. Whether you're upgrading a single M.2 slot, building a front-access U.2 configuration, or expanding dual-drive capacity, the MB309A5 works seamlessly with ICY DOCK’s mobile racks and MCIO cables to deliver a turnkey setup.


    This plug-and-play compatibility removes the guesswork from system design - ensuring your enclosure, cable, and adapter card work together out of the box. As your NVMe requirements evolve, the EXLink ecosystem provides scalable options that adapt easily to next-generation platforms.

    Related Models:

    • MB021VP-B
    • MB092VK-B
    • MB833MK-B V2
    • MB834MK-B V2
    • MB601V5K-B
    • MB491V5K-B
    • MB601V4KW-B
    • MB699V5P-B
    • MB508V5P-B

    Compatible Drive Cables:

    • MB403L-B Cable
    • MB413L-B Cable
    • MB414L-B Cable
  • Simplify NVMe Upgrades with the ICY DOCK Selection Tool
    NVMe Storage Selection Tool - an interactive guide that helps you find compatible mobile racks, cables, and adapters based on your system's NVMe slot type and installation needs.

    Perfect for system integrators and DIY users alike, it eliminates the guesswork from building your ideal removable NVMe storage solution.
Main Features
Converts M.2 NVMe (PCIe Gen5 x4) slot into MCIO 4i output
   
Fully compatible with ICY DOCK MCIO-based mobile racks & cables
   
Built-in PCIe Gen5 redriver ensures high-speed signal integrity over long cables
   
100MHz clock buffer, SMBus repeater, and power signal gates for robust system integration
   
Supports transfer rates up to 128Gbps
   
Ideal for removable storage workflows in workstations, servers, edge AI systems, and industrial PCs
   
Compatible with PCIe Gen 2 / 3 / 4 / 5 M-Key M.2 slots
   
2-year limited warranty
Specification
Model Number: MB309A5
Compatible Drive Type: NVMe
Support Slots: Works with M.2 M-key PCIe 2.0/3.0/4.0 or 5.0 slots on motherboards
Host Interface: 1 x M.2 M-key slot
Endpoint Interface: 1 x MCIO 4i (SFF-TA-1016)
Transfer Rate: PCIe 5.0 x4 up to 128Gbps
Supported Operating Systems: No limitation
Product Dimension (W x H x D): 80 x 22 x 10mm
Product Net Weight: 5.8g
Package Gross Weight: 36.2g
Package Contents: 1 - device, 1 - user manual
Connector Insertion Rate: 5,000
Humidity: 5%~65% RH
Operating Temperature: 0°C to 70°C (32°F to 158°F)
Storage Temperature: -35°C to 70°C (-31°F to 158°F)
Compliance: CE, UKCA, RoHS, REACH
Warranty: 2 years limited warranty

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