Product comparison · 2 network transceiver modules

Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 vs StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX

10specifications compared
6differ
4identical
18known for one product only

Key differences

The StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX has 98,750 Mbit/s more maximum data transfer rate than the Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 (100000 Mbit/s vs 1250 Mbit/s). The Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 has 19,900 m more maximum transfer distance than the StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX (20000 m vs 100 m). The Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 has 700 nm more tx wavelength (max) than the StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX (1550 nm vs 850 nm). Interface type: BiDi SFP on the Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0, QSFP on the StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX. 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 Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX.

Maximum data transfer rate
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:1250 Mbit/s
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:100000 Mbit/s
Interface type
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:BiDi SFP
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:QSFP
Maximum transfer distance
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:20000 m
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:100 m
Tx wavelength (max)
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:1550 nm
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:850 nm
Rx wavelength (max)
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:1550 nm
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:900 nm
Quantity per pack
- 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0:2 pc(s)
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:1 pc(s)

Side by side

Differences highlightedShow differences only

Comparison of 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0, QSFP-40-100-SRB-ST
28 specifications	A Cudy 1.25G BiDi Single-Mode Optical Module, SM100GSB-20AB 1.0 View product	B StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX Model QSFP-40-100-SRB-ST View product
Performance5 differ
SFP transceiver type	Fiber optic	Fiber optic
Maximum data transfer rateDiffers	1250 Mbit/s	100000 Mbit/s
Interface typeDiffers	BiDi SFP	QSFP
Multi-mode fiber (MMF) supportedKnown for one	Unknown — not stated by the source	Yes
Fiber optic connector	LC	LC
SFP transceiver standardKnown for one	Unknown — not stated by the source	SRBD
Maximum transfer distanceDiffers	20000 m	100 m
Tx wavelength (max)Differs	1550 nm	850 nm
Rx wavelength (max)Differs	1550 nm	900 nm
Networking standardsKnown for one	Unknown — not stated by the source	IEEE 802.3ba
Fiber ethernet cabling technologyKnown for one	Unknown — not stated by the source	100GBASE
Duplex systemKnown for one	Unknown — not stated by the source	Full, Half
Digital Diagnostics Monitoring (DDM)	Yes	Yes
Single-mode fiber (SMF) supportedKnown for one	Yes	Unknown — not stated by the source
Tx wavelength (min)Known for one	1310 nm	Unknown — not stated by the source
Rx wavelength (min)Known for one	1310 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	3543209 h
Brand compatibilityKnown for one	Unknown — not stated by the source	Cisco
Poweridentical
Power consumption (typical)Known for one	Unknown — not stated by the source	4 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	117.6 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
Logistics dataidentical
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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