ICY DOCK 

ICY DOCK EXLINK MB308A PCIE 4.0 X16 NVME ADAPTER CARD WITH 2 X SLIMSAS 8I (S

Mfg Part Number:  MB308A  
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Price: $287.91
Quantity:
In Stock: 8
Last Updated: Mar 12, 2026
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The ICY DOCK EXLink MB308A is a high-performance PCIe 4.0 x16 adapter card featuring two SlimSAS 8i (SFF-8654) ports for direct NVMe connectivity. Engineered with an integrated redriver IC and PCIe clock buffer, the MB308A maintains signal integrity across longer cable runs, ensuring stable PCIe Gen4 speed and reliability. Validated with ICY DOCK NVMe mobile racks and enclosures, the MB308A provides a dependable foundation for servers, workstations, and validation labs where consistent NVMe storage performance is mission critical.

Optimized PCIe 4.0 x16 Connectivity for NVMe Storage

With a PCIe 4.0 x16 interface delivering up to 256Gbps of total bandwidth, the MB308A is designed to work with motherboards that support lane bifurcation (x4, x4, x4, x4). When enabled, this feature allows the adapter to connect up to four NVMe SSDs across its two SlimSAS 8i ports. If the motherboard does not provide bifurcation, only a single SSD may be recognized.

Redriver for Stable High-Speed Signals

In high-speed NVMe environments, PCIe signals can degrade over longer PCB traces or external cables. The MB308A's built-in redriver equalizes and amplifies signals, enabling SlimSAS connections to sustain full PCIe Gen4 speed even with qualified long-reach cables. This ensures reliable throughput for demanding workloads such as AI/ML training, data validation, and scientific simulations.

PCIe Clock Buffer & SMBus Management

To maintain timing accuracy across connected devices, the MB308A integrates a 100MHz PCIe clock buffer for SlimSAS-based NVMe storage. Built-in SMBus switching and reset management enhance stability and provide out-of-band control, ensuring reliable operation in enterprise-grade applications.

Validated NVMe Compatibility with ICY DOCK Mobile Racks

The MB308A has been validated with ICY DOCK NVMe mobile racks and enclosures, ensuring reliable interoperability for enterprise and workstation deployments. This reduces integration risk for system builders and provides customers with a fully tested solution for high-speed removable NVMe storage.

Main Specification
General Information
Manufacturer Icy Dock
Manufacturer Part Number MB308A
Manufacturer Website Address http://www.icydock.com
Brand Name Icy Dock
Product Line EXLink
Product Model MB308A
Product Name EXLink MB308A
Product Type Mini-SAS Card Adapter
Physical Characteristics
Card Height Full-height
Height 6.5"
Width 4.8"
Depth 0.8"
Weight (Approximate) 2.36 oz
Miscellaneous
Package Contents
  • EXLink MB308A
  • Mounting Screws
  • User Manual
Device Supported Workstation
Device Supported Server
Certifications & Standards
  • CE
  • UKCA
Environmental Compliance Registration, Evaluation, Authorization and Restriction of Chemicals (REACH)
Environmental Compliance Restriction of Hazardous Substances (RoHS)
Warranty
Limited Warranty 2 Year
WARNING:: The plastic used in cable products can expose you to lead and lead components, chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information go to www.P65Warnings.ca.gov
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