Product comparison · 2 network transceiver modules

Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 vs StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm

9specifications compared
5differ
4identical
25known for one product only

Key differences

The StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm has 398,750 Mbit/s more maximum data transfer rate than the Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 (400000 Mbit/s vs 1250 Mbit/s). The Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 has 19,500 m more maximum transfer distance than the StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm (20000 m vs 500 m). Interface type: BiDi SFP on the Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0, QSFP-DD on the StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm. Fiber optic connector: LC on the Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0, MPO on the StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm. Quantity per pack: 2 pc(s) on the Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0, 1 pc(s) on the StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm.

Maximum data transfer rate
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:1250 Mbit/s
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:400000 Mbit/s
Interface type
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:BiDi SFP
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:QSFP-DD
Fiber optic connector
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:LC
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:MPO
Maximum transfer distance
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:20000 m
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:500 m
Quantity per pack
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:2 pc(s)
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:1 pc(s)

Side by side

Differences highlightedShow differences only

Comparison of 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0, QSFP-400G-DR4-UST
34 specifications	A Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 View product	B StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm Model QSFP-400G-DR4-UST View product
Performance4 differ
SFP transceiver type	Fiber optic	Fiber optic
Maximum data transfer rateDiffers	1250 Mbit/s	400000 Mbit/s
Interface typeDiffers	BiDi SFP	QSFP-DD
Single-mode fiber (SMF) supported	Yes	Yes
Fiber optic connectorDiffers	LC	MPO
SFP transceiver standardKnown for one	Unknown — not stated by the source	DR4
Maximum transfer distanceDiffers	20000 m	500 m
WavelengthKnown for one	Unknown — not stated by the source	1310 nm
Networking standardsKnown for one	Unknown — not stated by the source	IEEE 802.3bs
Fiber ethernet cabling technologyKnown for one	Unknown — not stated by the source	400GBASE
Duplex systemKnown for one	Unknown — not stated by the source	Full
Digital Diagnostics Monitoring (DDM)	Yes	Yes
Tx wavelength (min)Known for one	1310 nm	Unknown — not stated by the source
Tx wavelength (max)Known for one	1550 nm	Unknown — not stated by the source
Rx wavelength (min)Known for one	1310 nm	Unknown — not stated by the source
Rx wavelength (max)Known for one	1550 nm	Unknown — not stated by the source
Featuresidentical
Product colour	Silver	Silver
Mean time between failures (MTBF)Known for one	Unknown — not stated by the source	2603285 h
Brand compatibilityKnown for one	Unknown — not stated by the source	MSA Compliant
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	12 W
Operational conditionsidentical
Operating temperature (T-T)Known for one	Unknown — not stated by the source	0 - 70 °C
Weight & dimensionsidentical
WidthKnown for one	Unknown — not stated by the source	19 mm
DepthKnown for one	Unknown — not stated by the source	117.8 mm
HeightKnown for one	Unknown — not stated by the source	12.6 mm
Packaging content1 differ
Quantity per packDiffers	2 pc(s)	1 pc(s)
Packaging dataidentical
User guideKnown for one	Unknown — not stated by the source	Yes
Package widthKnown for one	Unknown — not stated by the source	180 mm
Package depthKnown for one	Unknown — not stated by the source	127 mm
Package heightKnown for one	Unknown — not stated by the source	48 mm
Logistics dataidentical
Master (outer) case widthKnown for one	Unknown — not stated by the source	117 mm
Master (outer) case lengthKnown for one	Unknown — not stated by the source	250 mm
Master (outer) case heightKnown for one	Unknown — not stated by the source	200 mm
Products per master (outer) caseKnown for one	Unknown — not stated by the source	36 pc(s)
Certificatesidentical
Compliance certificatesKnown for one	RoHS, Federal Communications Commission (FCC), CE	Unknown — not stated by the source

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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