Product comparison · 2 network transceiver modules

StarTech.com MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm vs StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX

22specifications compared
8differ
14identical
9known for one product only

Key differences

The StarTech.com MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm has 5,261,933 h more mean time between failures (MTBF) than the StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX (8805142 h vs 3543209 h). The StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX has 0.5 W more power consumption (typical) than the StarTech.com MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm (4 W vs 3.5 W). The StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX has 0.6 mm more width than the StarTech.com MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm (19 mm vs 18.4 mm). Fiber optic connector: MPO on the StarTech.com MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm, LC on the StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX. SFP transceiver standard: SR4 on the StarTech.com MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm, SRBD on the StarTech.com Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX.

Fiber optic connector
- MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm:MPO
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:LC
SFP transceiver standard
- MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm:SR4
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:SRBD
Duplex system
- MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm:Full
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:Full, Half
Mean time between failures (MTBF)
- MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm:8805142 h
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:3543209 h
Brand compatibility
- MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm:MSA Compliant
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:Cisco
Power consumption (typical)
- MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm:3.5 W
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:4 W
Width
- MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm:18.4 mm
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:19 mm
Depth
- MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm:120 mm
- Cisco QSFP-40/100-SRBD Compatible QSFP Module, 40/100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nmTX/900nmRX:117.6 mm

Side by side

Differences highlightedShow differences only

Comparison of QSFP-100G-SR4-S-UST, QSFP-40-100-SRB-ST
31 specifications	A StarTech.com MSA Uncoded QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], MPO Transceiver, 850nm Model QSFP-100G-SR4-S-UST 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
Performance3 differ
Fiber optic connectorDiffers	MPO	LC
SFP transceiver standardDiffers	SR4	SRBD
WavelengthKnown for one	850 nm	Unknown — not stated by the source
Duplex systemDiffers	Full	Full, Half
Tx wavelength (max)Known for one	Unknown — not stated by the source	850 nm
Rx wavelength (max)Known for one	Unknown — not stated by the source	900 nm
Features2 differ
Mean time between failures (MTBF)Differs	8805142 h	3543209 h
Brand compatibilityDiffers	MSA Compliant	Cisco
Power1 differ
Power consumption (typical)Differs	3.5 W	4 W
Weight & dimensions2 differ
WidthDiffers	18.4 mm	19 mm
DepthDiffers	120 mm	117.6 mm
Packaging dataidentical
Package widthKnown for one	112 mm	Unknown — not stated by the source
Package depthKnown for one	90 mm	Unknown — not stated by the source
Package heightKnown for one	32 mm	Unknown — not stated by the source
Logistics dataidentical
Master (outer) case widthKnown for one	117 mm	Unknown — not stated by the source
Master (outer) case lengthKnown for one	250 mm	Unknown — not stated by the source
Master (outer) case heightKnown for one	200 mm	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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