> Express11-G3

Express11-G3Express11-G3 Backplane 

11 slot, Gen.3 PCIe backplane

96 lane PCI express 3.0 switch

Support for multiple backplanes for large systems

Supports 8 GB/s full duplex links per slot

The Datapath Express11-G3 backplane provides 11 eight lane PCI Express slots, all implemented as x16 physical connectors.

They can be used with a standard PICMG 1.3 SBC as a stand alone system or in combination with multiple backplanes to provide a PCI Express expansion system for a standard PC.

This backplane uses advanced PCI Express 3.0 switches to create high bandwidth that connects up to 11 PCI express plug in cards into a host system.

The Datapath Express11-G3 uses PCIe Gen.3 switches to provide each slot with up to 8GB/s bi-directional bandwidth.

Using multiple Express11-G3 backplanes configured in a daisy chain expansion mode allows construction of large systems. The Express11-G3 can also be expanded using a star configuration. This configuration enables the construction of very large systems supporting low latency with a high number of slots.

Connecting Multiple Express11-G3 Backplanes - Star Configuration

Star Configuration

All x8 PCI Express slots in the master chassis (containing the SBC) are populated with a HLink-G3 card. Each HLink-G3 is then connected to an expansion chassis using an ExCable-G3 and SLink-G3 card. This configuration provides a high number of available PCI Express slots supporting low latency.

Connecting Multiple Express11-G3 Backplanes - Daisy Chain Configuration

Daisy Chain Configuration

Daisy chain the main chassis to a maximum of five expansion chassis providing up to 51 PCI Express expansion slots.

Key Qualities of the Express11-G3:

  • 11 slot, Gen.3 PCI Express backplane
  • Once PICMG 1.3 SBC slot
  • Standard ATX form factor
  • Support for multiple backplanes for large systems
  • Supports 8 GB/s full duplex links
  • 96 lanes PCI Express 3.0 switch
  • Support for two SATA connections
  • Provides headers for (1, 2 or 3) fans

Specification of the Express11-G3:

Max Power (without SBC) 25W
Power Requirements Max current at +3.3V <0.5A
Max current at +12V <0.5A
Max current at +5V <4A
Form Factor PICMG1.3 Host SBC interface (x8 PCIe)
11 x PCI Express (x8) expansion slot
ATX PSU 2 x 24 pin power connectors
2 x 8 pin AUX power connectors
SATA Ports 2 x ports via PICMG1.3 interface
USB Ports 2 x ports via PICMG1.3 interface, USB 2.0
Operating Temperature 0 to 35 deg C/ 32 to 95 deg F
Storage Temperature -20 to 70 deg C/ -4 to 158 deg F
Relative Humidity 5% to 90% non-condensing


We are continuously developing the technology used within our product ranges delivering outstanding innovative solutions, therefore the specification may change from time to time.

Models Available of the Express11-G3:

ProductName/Order Code Description
Express11-G3 11 slot PCI Express Gen.3 Expansion backplane PCIe 3.0 switch


Your packing box should contain the following items:

  • An Express11-G3 expansion back plane


All products are shipped with the latest software available, unless stated otherwise. Special requirements may be organised by contacting our Sales team.

Related Products:

The table below shows all the related products, the PCIe Optical Link, for the Express11-G3 backplane:

ProductName/Order Code Description
HLink-G3 Host link card Gen.3
SLink-G3 Slave link card Gen. 3
ExCable-G3 Copper cable Gen.3

Where to buy

Datapath has a large network of distributors and resellers across the World.


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