QSFP+ 56G FDR Passive Copper Cable Assemblies


Siemon QSFP+ Fourteen Data Rate (FDR) Copper Cable assemblies provide 56Gb/s of bandwidth (4 X 14Gb/s). These QSFP+ (SFF-8436) cables exceed industry standards to support DDR, QDR, FDR and emerging 4x16Gb/s applications. Siemon's QSFP+ FDR assemblies are a high-density, cost-effective, low-power option for leading edge 56Gbs high-speed data centers, available in standard lengths up to 3 meters with longer custom lengths available upon request.

  • Multiple conductor sizes available to achieve optimized performance
  • Positive retention pull-release latch system
  • High-Density QSFP+ connector
  • Ultra low crosstalk for enhanced performance
  • PCB Termination
    • Laser stripped conductors
    • Overmold provides additional strain relief to minimize pistoning
    • Automated welding for unmatched consistency
    • Welding results in less dielectric shrink-back than soldering
  • InfiniBand 4X SDR, DDR, QDR, FDR
  • Ethernet 10G,40G
  • FiberChannel 10G,40G, SAN, 4x16G
  • RapidIO
  • Myrinet 40G
  • Rack-to-Rack, Shelf-to-Shelf Interconnect
  • Networking
  • Storage
  • Hubs, switches, routers, servers
Standards Compliance
  • Electrical: IBTA V2 Revision 1.2.1
  • IEEE 802.3ba
  • EEPROM: SFF-8636
  • 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 40N Max.
Withdrawal Force 30N Max.
Retention Force 90N Min.
Durability 250 Cycles
Tightest Recommended Vertical Spacing (Belly to Belly) 11.80 mm Center to Center
Tightest Recommended Vertical Spacing (Stacked) 17.50 mm Center to Center
Conductor Solid
Wire Gauge 30 AWG and 28 AWG
Impedence 100 +/- 5 ohms
Construction Twinaxial
Cable OD 30AWG = 6.1mm (0.240 in), 28AWG = 8.7mm (0.343 in)
Jacket Type PVC
Bend Radius 5X Cable OD -Single 10X Cable OD - Repeated

Maximum Lengths

Gauge IBTA DDR (meters) IBTA QDR1 (meters) IEEE 802.3ba (meters) IBTA FDR (meters)
30 5 3 3 2
28 7 4 4 3

1 Per IBTA cable MOI VO.69:-13dB @ 5GHz

Part Numbers

QSFPFDR28-03  QSFP+ to QSFP+ FDR Passive Copper Cable Assemblies, 3 meters, 28 AWG
QSFPFDR30-0.5  QSFP+ to QSFP+ FDR Passive Copper Cable Assemblies, 0.5 meters, 30 AWG
QSFPFDR30-01  QSFP+ to QSFP+ FDR Passive Copper Cable Assemblies, 1 meter, 30 AWG
QSFPFDR30-02  QSFP+ to QSFP+ FDR Passive Copper Cable Assemblies, 2 meters, 30 AWG

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

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