CXP to 3 QSFP+ 40/100G Passive Copper Cable Assemblies


Siemon CXP to 3 QSFP+ Copper Cable assemblies allow users to connect CXP and QSFP+ equipment together. Compliant with both CXP and QSFP+ specifications, this breakout cable provides a cost effective, low-power option for high density high-speed data center interconnects. The CXP form factor can replace up to three standard QSFP+ connections, providing greater density and reduced system cost. The direct-attach assemblies support emerging 100Gb/s applications and are available in standard lengths up to 3 meters with longer custom lengths available.

  • InfiniBand 12xSDR, 12xDDR, 12xQDR
  • Ethernet 10G,40G, 100G
  • Rack-to-Rack, Shelf-to-Shelf Interconnect
  • Networking, NIC
  • Storage: DAS, SAN, NAS
  • Hubs, switches, routers, servers
  • Positive retention pull-release latch system
  • Ultra low crosstalk for enhanced performance
  • High-Density CXP Connector
  • Multiple conductor sizes available to achieve optimized performance
Standards Compliance
  • QSFP+ End
    - SFF-8436
  • CXP End
    - SFF-8642
  • Assembly
    - IEEE 802.3ba
    - IBTA V2 Revision 1.3
    - RoHS

RoHS Compliant


Performance Specifications:

Min. Dielectric Withstand Voltage 300 VDC
Insulation Resistance 1000 Mohms
Current Rating 0.5 Amp Min/Signal Contact
Operating Temperature 0 to 70 C (32 to 158 F)
Flammability Rating (Plastics) UL 94
Green Features RoHS, Lead-Free
Shield Braid/Foil
Marking Mfg Name, Part#, Date Code
Backshell Material Nickel Plated Zinc Diecast
Contact Material PCB with Gold-Plated Pads
Plastic Material Nylon
Latch Positive Latching w/Pull Tab
Insertion Force CXP: 150N Max: QSFP+ 40 N Max.
Withdrawal Force CXP: 50N Max: QSFP+ 30 N Max.
Durability 250 Cycles
CXP Tightest Recommended Horizontal Spacing 27.00 mm Center to Center
CXP Tightest Recommended Vertical Spacing (Stacked) 16.50 mm Center to Center
Conductor Solid
Wire Gauge 30 AWG to 26 AWG
Impedence 100 +/- 5 ohms
Construction Twinaxial
Cable OD 30 AWG = 9.5mm (0.374 in.)
28 AWG = 11mm (0.433 in.)
26 AWG = 14mm (0.551 in.)
Jacket Type PVC
Bend Radius 5X Cable OD -Single
10X Cable OD - Repeated

Maximum Lengths:

Gauge IBTA DDR (meters) IBTA QDR* (meters) IEEE 802.3ba (meters)
30 4 2 2
28 6 3 3

* Per IBTA V2 revision 1.3: -13dB @ 5GHz

Part Numbers

CXPQSFP30-01  CXP to 4X QSFP+ Passive Copper Cable Assembly, 1 meters, 30 AWG
CXPQSFP30-02  CXP to 4X QSFP+ Passive Copper Cable Assembly, 2 meters, 30 AWG
CXPQSFP28-03  CXP to 4X QSFP+ Passive Copper Cable Assembly, 3 meters, 28 AWG

Because we continuously improve our products, Siemon reserves the right to change specifications and availability without prior notice