Product comparison · 2 network transceiver modules

StarTech.com MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX vs StarTech.com Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm

27specifications compared
12differ
15identical
5known for one product only

Key differences

Maximum data transfer rate
- MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:100000 Mbit/s
- Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:400000 Mbit/s
Interface type
- MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:QSFP
- Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:QSFP-DD
Fiber optic connector
- MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:LC
- Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:MPO
SFP transceiver standard
- MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:SRBD
- Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:DR4
Maximum transfer distance
- MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:100 m
- Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:500 m
Networking standards
- MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:IEEE 802.3ba
- Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:IEEE 802.3bs
Fiber ethernet cabling technology
- MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:100GBASE
- Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:400GBASE
Duplex system
- MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:Full, Half
- Cisco QDD-400G-DR4-S Compatible QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:Full

Side by side

Differences highlightedShow differences only

Comparison of QSFP-40-100-SRB-UST, QSFP-400G-DR4-ST
32 specifications	A StarTech.com MSA Uncoded QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX Model QSFP-40-100-SRB-UST 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
Performance8 differ
SFP transceiver type	Fiber optic	Fiber optic
Maximum data transfer rateDiffers	100000 Mbit/s	400000 Mbit/s
Interface typeDiffers	QSFP	QSFP-DD
Multi-mode fiber (MMF) supportedKnown for one	Yes	Unknown — not stated by the source
Fiber optic connectorDiffers	LC	MPO
SFP transceiver standardDiffers	SRBD	DR4
Maximum transfer distanceDiffers	100 m	500 m
Tx wavelength (max)Known for one	850 nm	Unknown — not stated by the source
Rx wavelength (max)Known for one	900 nm	Unknown — not stated by the source
Networking standardsDiffers	IEEE 802.3ba	IEEE 802.3bs
Fiber ethernet cabling technologyDiffers	100GBASE	400GBASE
Duplex systemDiffers	Full, Half	Full
Digital Diagnostics Monitoring (DDM)	Yes	Yes
Single-mode fiber (SMF) supportedKnown for one	Unknown — not stated by the source	Yes
WavelengthKnown for one	Unknown — not stated by the source	1310 nm
Features2 differ
Product colour	Silver	Silver
Mean time between failures (MTBF)Differs	3543209 h	2603285 h
Brand compatibilityDiffers	MSA Compliant	Cisco
Power1 differ
Power consumption (typical)Differs	4 W	12 W
Operational conditionsidentical
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Weight & dimensions1 differ
Width	19 mm	19 mm
DepthDiffers	117.6 mm	117.8 mm
Height	12.6 mm	12.6 mm
Packaging contentidentical
Quantity per pack	1 pc(s)	1 pc(s)
Packaging dataidentical
User guide	Yes	Yes
Package width	180 mm	180 mm
Package depth	127 mm	127 mm
Package height	48 mm	48 mm
Logistics dataidentical
Master (outer) case width	117 mm	117 mm
Master (outer) case length	250 mm	250 mm
Master (outer) case height	200 mm	200 mm
Products per master (outer) case	36 pc(s)	36 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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