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Product comparison · 2 network transceiver modules

LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC vs StarTech.com Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm

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  • 15specifications compared
  • 6differ
  • 9identical
  • 29known for one product only

Key differences

The StarTech.com Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm has 360,000 Mbit/s more maximum data transfer rate than the LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC (400000 Mbit/s vs 40000 Mbit/s). The LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC has 39,500 m more maximum transfer distance than the StarTech.com Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm (40000 m vs 500 m). The StarTech.com Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm has 360 GBASE more fiber ethernet cabling technology than the LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC (400GBASE vs 40GBASE). Interface type: QSFP+ on the LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC, QSFP-DD on the StarTech.com Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm. SFP transceiver standard: ER4 on the LevelOne QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC, DR4 on the StarTech.com Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm.

  • Maximum data transfer rate
    • 40000 Mbit/s
    • 400000 Mbit/s
  • Interface type
    • QSFP+
    • QSFP-DD
  • SFP transceiver standard
    • ER4
    • DR4
  • Maximum transfer distance
    • 40000 m
    • 500 m
  • Fiber ethernet cabling technology
    • 40GBASE
    • 400GBASE
  • Brand compatibility
    • MSA Compliant
    • Cisco

Side by side

Differences highlightedShow differences only
44 specifications
A

LevelOne

QFP-3140 40Gbps ER4 Single-mode QSFP+ CWDM4 Transceiver, 40km, 1310nm, Duplex LC

Model QFP-3140

View product
B

StarTech.com

Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm

Model QSFP-400G-DR4-ST

View product
Performance5 differ
Maximum data transfer rateDiffers40000 Mbit/s400000 Mbit/s
Interface typeDiffersQSFP+QSFP-DD
SFP transceiver standardDiffersER4DR4
Maximum transfer distanceDiffers40000 m500 m
Coarse Wavelength Division Multiplexing (CWDM)Known for oneYes
Ethernet interface typeKnown for one40 Gigabit Ethernet
Fiber ethernet cabling technologyDiffers40GBASE400GBASE
Fiber optic connectorKnown for oneMPO
Networking standardsKnown for oneIEEE 802.3bs
Features1 differ
Form factorKnown for oneQSFP+
Plug and PlayKnown for oneYes
Hot-swapKnown for oneYes
Brand compatibilityDiffersMSA CompliantCisco
Mean time between failures (MTBF)Known for one2603285 h
Certificatesidentical
Compliance certificatesKnown for oneCE
Waste Electrical and Electronic Equipment (WEEE) complianceKnown for oneYes
Operational conditionsidentical
Minimum operating temperatureKnown for one0 °C
Maximum operating temperatureKnown for one70 °C
Storage temperature (T-T)Known for one-40 - 85 °C
Operating relative humidity (H-H)Known for one0 - 85%
Storage relative humidity (H-H)Known for one5 - 85%
Packaging dataidentical
Package widthKnown for one180 mm
Package depthKnown for one127 mm
Package heightKnown for one48 mm
Logistics dataidentical
Customs product code (TARIC)Known for one8517620000
Harmonized System (HS) codeKnown for one851762
Country of originKnown for oneTaiwan
Master (outer) case widthKnown for one117 mm
Master (outer) case lengthKnown for one250 mm
Master (outer) case heightKnown for one200 mm
Products per master (outer) caseKnown for one36 pc(s)
Poweridentical
Power consumption (typical)Known for one12 W
Weight & dimensionsidentical
WidthKnown for one19 mm
DepthKnown for one117.8 mm
HeightKnown for one12.6 mm

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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