Product comparison · 2 network transceiver modules

StarTech.com Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm vs StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm

27specifications compared
12differ
15identical
5known 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 300,000 Mbit/s more maximum data transfer rate than the StarTech.com Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm (400000 Mbit/s vs 100000 Mbit/s). The StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm has 400 m more maximum transfer distance than the StarTech.com Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm (500 m vs 100 m). The StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm has 300 GBASE more fiber ethernet cabling technology than the StarTech.com Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm (400GBASE vs 100GBASE). Interface type: QSFP on the StarTech.com Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm, 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 StarTech.com Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm, MPO on the StarTech.com MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm.

Maximum data transfer rate
- Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm:100000 Mbit/s
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:400000 Mbit/s
Interface type
- Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm:QSFP
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:QSFP-DD
Fiber optic connector
- Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm:LC
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:MPO
SFP transceiver standard
- Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm:SR
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:DR4
Maximum transfer distance
- Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm:100 m
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:500 m
Networking standards
- Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm:IEEE 802.3ba
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:IEEE 802.3bs
Fiber ethernet cabling technology
- Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm:100GBASE
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:400GBASE
Duplex system
- Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm:Full, Half
- MSA Uncoded QSFP-DD Module, 400Gbps Single Mode Fiber (SMF), 500m [1640ft], MPO Transceiver, 1310nm:Full

Side by side

Differences highlightedShow differences only

Comparison of QSFP-100G-SR12-ST, QSFP-400G-DR4-UST
32 specifications	A StarTech.com Cisco QSFP-100G-SR1.2 Compatible QSFP Module, 100Gbps Multi Mode Fiber (MMF), 100m [328ft], LC Transceiver, 850nm/900nm Model QSFP-100G-SR12-ST 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
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	SR	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	3003300 h	2603285 h
Brand compatibilityDiffers	Cisco	MSA Compliant
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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