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Dual External PCIe (iPass x4 38pin compatible) to PCIe x8 Gen 3 Switch Host Card

DEP4X-PCIE8XG301|Dual External PCIe (iPass x4 38pin compatible) to PCIe x8 Gen 3 Switch Host Card
  • Upstream: 8-lane PCI Express
  • Downstream:  Two Quad-lane External PCIe Connectors (38pin iPass compatible)
  • Support PCI Express x4 Active Optical Cable
  • Supports PCIe Gen 1/PCIe Gen 2/PCIe Gen 3 transfer rates
    • PCIe Gen 1: 2.5 Gbps per Lane
    • PCIe Gen 2: 5.0 Gbps per Lane
    • PCIe Gen 3: 8.0 Gbps per Lane
  • Maximum Payload Size – 2,048 bytes
  • Quality of Service (Qos) support
    • Traffic Class Queuing
    • Eight Traffic Classes per port
    • Weighted round-robin source port arbitration

DEP4X-PCIE8XG301 is Dual External PCIe x4 to PCIe x8 Gen 3 Host Card. Designed to overcome the limited PCIe connectivity of most desktop computers, the DEP4X-PCIE8XG301 can be quickly and easily set up for external expansion. No additional software or drivers are needed.

In particularly rugged environments, your desktop computer can be placed at a secure location up to 7 meters (for PCIe Gen 1.0) or 100 meters (with PCIe A.O.C) away. High performance and reliable communication is maintained with the well-shielded extension cable or A.O.C (Active Optical Cable), and the docking station is designed to withstand high or low temperatures, vibrations and shocks.  In addition, the isolation between core components and docked PCIe devices eliminates any possible electromagnetic interference between them.

Utilizing the standard PCI Express Switch, the 16-Lane/5-Port PCI Express Gen 3 (8 Gbps) Switch provides the most efficient fan-out solution.

Technical Specifications


Upstream PCIe interface
  • 8-lane PCI Express
    • PCIe Gen 1 (2.5GT/s)
    • PCIe Gen 2 (5.0GT/s)
    • PCIe Gen 3 (8.0 GT/s)
Downstream PCIe interface
  • Two 38pin iPass (0.8mm pitch) compatible I/O Connectors
    • Scalability up to 10Gb/s
      • PCIe Gen I – 2.5Gb/s
      • PCIe Gen II – 5.0Gb/s
      • PCIe Gen III – 8.0Gb/s
    • Durability - 250 cycles
    • Fully shielded to provide maximum EMI/RFI protection
      • Guide to system bezel gasket
      • Cable plug gasket to front face of Guide
    • First mate, last break
    • RoHS compliant
Key Features
  • Standards Compliant
    • PCI Express Base Specification, r3.0 (compatible w/ PCIe r1.0a/1.1 & 2.0)
    • PCI Power Management Spec r1.2
    • Microsoft Windows Logo Compliant
    • Supports Access Control Services
    • Dynamic link-width control
    • Dynamic SerDes Speed Control
  • High Performance
    • performancePAK
      • Multicast
      • Dynamic Buffer/FC Credit Pool
    • Non-blocking switch fabric
    • Full line rate on all ports
    • Cut-Thru packet latency of less than 100ns between symmetric (x4 to x4) ingress and egress Ports
    • 2KB Max Payload Size
  • Quality of Service (QoS)
    • Traffic Class Queuing
    • Eight Traffic Classes per port
    • Weighted round-robin source port arbitration

Lane Status LEDs

  • Slow Blink: Gen 1
  • Fast Blink: Gen 2
  • Solid: Gen 3


  • Upstream Lane Status LEDs
    • PORT0 LED: Upstream Status LED
  • Downstream Lane Status LEDs
    • PORT1 LED: Downstream PORT 1 Status LED
    • PORT2 LED: Downstream PORT 2 Status LED
  • SW1-1&2: Non-Transparent Mode
SW 1-1 SW 1-2 NT Port
ON ON Port 2
OFF ON Port 1
ON* OFF* Disable
  • SW1-3&4: Max PCIe Data Rate
SW 1-3 SW 1-4 PCIe Data Rate
ON* OFF* Gen 3 (8.0 GT/s)
OFF OFF Gen 2 (5.0 GT/s)
ON ON Gen 1 (2.5 GT/s)
  • SW3-1&2: CFC (100MHz) Spread Setting
SW 3-1 SW 3-2 PCIe Data Rate
OFF* OFF* No Spread
ON OFF Down -0.75
OFF ON Down -0.5
  • SW3-3: Port 1 CWAKE#
SW 3-4 Wake
ON Enable
OFF* Disable
  • SW3-4: Port 2 CWAKE#
SW 3-4 Wake
ON Enable
OFF* Disable
Computer Platform Requirements Desktop computer equipped with a PCIe x8, x16 slot


Physical Dimensions
  • 82(H)x101(L) mm
  • NW: 98.2g
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