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Product comparison · 2 network transceiver modules

StarTech.com MSA Uncoded QSFP+ Module - 40GBASE-LR4 - 40GbE Single Mode Fiber (SMF) Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - LC 10km - 1270nm to 1330nm vs StarTech.com MSA Compliant SFP Transceiver Module - 100BASE-EX~MSA Uncoded SFP Module - 100BASE-EX - 100MbE Single Mode Fiber (SMF) Optic Transceiver

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  • 32specifications compared
  • 19differ
  • 13identical
  • 7known for one product only

Key differences

  • Maximum data transfer rate
    • 40000 Mbit/s
    • 155 Mbit/s
  • Interface type
    • QSFP+
    • SFP
  • SFP transceiver standard
    • LR4
    • EX
  • Maximum transfer distance
    • 10000 m
    • 4000 m
  • Networking standards
    • IEEE 802.3ba
    • IEEE 802.3u
  • Duplex system
    • Full
    • Full, Half
  • Certification
    • CE, FCC, UR, REACH
    • CE, FCC, UR
  • Width
    • 18.4 mm
    • 13.9 mm

Side by side

Differences highlightedShow differences only
39 specifications
A

StarTech.com

MSA Uncoded QSFP+ Module - 40GBASE-LR4 - 40GbE Single Mode Fiber (SMF) Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - LC 10km - 1270nm to 1330nm

Model QSFP40LR4ST

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B

StarTech.com

MSA Compliant SFP Transceiver Module - 100BASE-EX~MSA Uncoded SFP Module - 100BASE-EX - 100MbE Single Mode Fiber (SMF) Optic Transceiver

Model SFP100BEXST

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Performance6 differ
Maximum data transfer rateDiffers40000 Mbit/s155 Mbit/s
Interface typeDiffersQSFP+SFP
Multi-mode fiber (MMF) supportedKnown for oneNo
SFP transceiver standardDiffersLR4EX
Maximum transfer distanceDiffers10000 m4000 m
Tx wavelength (min)Known for one1270 nm
Tx wavelength (max)Known for one1330 nm
Networking standardsDiffersIEEE 802.3baIEEE 802.3u
Duplex systemDiffersFullFull, Half
WavelengthKnown for one1310 nm
Wavelength-division multiplexing (WDM)Known for oneNo
Featuresidentical
Mean time between failures (MTBF)Known for one1489426 h
Poweridentical
Power consumption (typical)Known for one2.5 W
Certificates1 differ
CertificationDiffersCE, FCC, UR, REACHCE, FCC, UR
Weight & dimensions4 differ
WidthDiffers18.4 mm13.9 mm
DepthDiffers72 mm58.4 mm
HeightDiffers13 mm12.6 mm
WeightDiffers40 g20 g
Packaging data4 differ
Package widthDiffers134 mm90 mm
Package depthDiffers184 mm120 mm
Package heightDiffers48 mm30 mm
Package weightDiffers76 g48 g
Logistics data4 differ
Master (outer) case widthDiffers250 mm305 mm
Master (outer) case lengthDiffers300 mm400 mm
Master (outer) case heightDiffers200 mm315 mm
Products per master (outer) caseDiffers36 pc(s)80 pc(s)

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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