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PCI Express® Standard Interconnects

PCI Express® Standard Interconnects

PCI Express® is an I/O interconnect bus standard that expands the data transfer rates of original PCI™.


FAMILY OVERVIEW

PCI Express®

PCI Express® (PCIe®) is a high-speed PC I/O bus standard (which includes a protocol and a layered architecture) that replaces legacy PCI, PCI-X and other bus standards. PCIe® enhancements include high data rates, lower I/O count and smaller footprints. PCI Express® is a two-way, serial connection that carries data in packets along multiple pairs of point-to-point data lanes. This contrasts with the single parallel data bus of traditional PCI that routes data at a set rate.

Initial bit rates for PCI Express® Generation 1 reach 2.5 Gbps per lane direction, which equate to data transfer rates of approximately 200 Mbps.

PCI Express® Generation 2 supports data rates up to 5 Gbps, while PCI Express® Generation 3 supports data rates up to 8 Gbps.

PCI Express® was developed so that high-speed interconnects such as 1394b, USB 2.0, InfiniBand™, and Gigabit Ethernet would have an I/O architecture suitable for their transfer high speeds. Samtec offers products that meet the PCI Express® form factor as well as connectors and cable assemblies that are capable of PCI Express® Gen 1, Gen 2 and Gen 3 data rates.

FEATURES

PCI Express® Form Factor

High-speed edge card sockets support one, four, eight and sixteen PCI Express® links and mate with PCI Express® cable assemblies.

  • PCIE – PCI Express® Standard Board Level Receptacle
  • PCIEC – PCI Express® Extender Cable for debug and characterization
  • PCRF – PCI Express® Cable with SMAs for debug

PCI Express® Optical Systems

PCIe® active optical cable assemblies in x4 and x8 form factors with four independent, full-duplex optical channels to support PCIe® Gen 3 data rates up to 100 meters. The systems feature a fully integrated electrical to optical conversion engine available in full active optical cables with host and target, or half active optical cables with MTP end option.

  • PCIEA – PCI Express® Active Optical Cable Assembly Adaptor Card
  • PCIEO – PCI Express® Optical Extender Cable, capable to Gen 3
  • PCIES – PCI Express® Active Optical Cable Assembly and Adaptor Card System

PCI Express®-capable Standard Connectors

Samtec offers a complete portfolio of standard connectors that support PCI Express® Gen 1, Gen 2 and Gen 3 data rates. Some examples are below.

  • DPAM / DPAF – High-Speed Differential Pair Array
  • QMS-DP / QFS-DP – Q2™ High-Speed Connector Strips
  • QRM8 / QRF8 – Q Rate® High-Speed Slim Body Connector Strips
  • QSE-DP / QTE-DP – Q Pairs® - 0.80 mm High-Speed Connector Strips
  • QSH-DP / QTH-DP – Q Pairs® - 0.50 mm High-Speed Connector Strips
  • SEAM / SEAF – SEARAY™ High-Speed Open-Pin-Field Array
  • RU8 - HSEC8-DV / HSC8 – Board Stacking System

PCI Express®-capable Standard Cable Assemblies

Samtec offers a complete portfolio of standard cable assemblies that support PCI Express® Gen 1, Gen 2 and Gen 3 data rates. Some examples are below.

  • 6QCD – Q Strip® Coax Cable Assembly
  • ECDP – Edge Rate® Edge Card Twinax Cable Assembly
  • ECUE – FireFly™ 34 or 36 AWG Copper Micro Flyover System™ Cable Assembly
  • ERCD / ERDP – Edge Rate® Coax and Twinax High-Speed Cable Assemblies
  • EPLSP / HDLSP – Eye Speed® and Eye Speed® HD High-Speed I/O Cable Assemblies
  • EQCD / EQDP – Q Strip® - 0.80 mm Coax and Twinax High-Speed Cable Assemblies
  • EQRD – Q Rate® Coax High-Speed Cable Assembly
  • FCF8 – High-Speed Cost-Effective Micro Coax Cable Assembly
  • HQCD / HQDP – Q Strip® - 0.50 mm Coax and Twinax High-Speed Cable Assemblies
  • SEAC – SEARAY™ High-Speed Open-Pin-Field Array Cable Assembly

DOWNLOADS

Literature

PCIe® Over Fiber Guide

PCIe® Over Fiber  Guide

Get

Videos

For more information regarding PCI Express®, please visit their website at: www.pcisig.com/specifications/pciexpress/

PCI Express® is a registered trademark of PCI-SIG®.

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