Product comparison · 2 network transceiver modules

Allied Telesis QSFP28-LR4 network transceiver module Fiber optic 100000 Mbit/s 1308 nm vs Allied Telesis QSFP28-SR4 network transceiver module Fiber optic 100000 Mbit/s 850 nm

Key differences

Fiber optic connector
- QSFP28-LR4 network transceiver module Fiber optic 100000 Mbit/s 1308 nm:LC
- QSFP28-SR4 network transceiver module Fiber optic 100000 Mbit/s 850 nm:MPO
SFP transceiver standard
- QSFP28-LR4 network transceiver module Fiber optic 100000 Mbit/s 1308 nm:LR4
- QSFP28-SR4 network transceiver module Fiber optic 100000 Mbit/s 850 nm:SR4
Maximum transfer distance
- QSFP28-LR4 network transceiver module Fiber optic 100000 Mbit/s 1308 nm:10000 m
- QSFP28-SR4 network transceiver module Fiber optic 100000 Mbit/s 850 nm:100 m
Wavelength
- QSFP28-LR4 network transceiver module Fiber optic 100000 Mbit/s 1308 nm:1308 nm
- QSFP28-SR4 network transceiver module Fiber optic 100000 Mbit/s 850 nm:850 nm
Link budget
- QSFP28-LR4 network transceiver module Fiber optic 100000 Mbit/s 1308 nm:5 dB
- QSFP28-SR4 network transceiver module Fiber optic 100000 Mbit/s 850 nm:6 dB
Power consumption (typical)
- QSFP28-LR4 network transceiver module Fiber optic 100000 Mbit/s 1308 nm:4 W
- QSFP28-SR4 network transceiver module Fiber optic 100000 Mbit/s 850 nm:2.5 W

Differences highlightedShow differences only

Comparison of QSFP28-LR4, QSFP28-SR4
21 specifications	A Allied Telesis QSFP28-LR4 network transceiver module Fiber optic 100000 Mbit/s 1308 nm Model QSFP28-LR4 View product	B Allied Telesis QSFP28-SR4 network transceiver module Fiber optic 100000 Mbit/s 850 nm Model QSFP28-SR4 View product
Performance5 differ
SFP transceiver type	Fiber optic	Fiber optic
Maximum data transfer rate	100000 Mbit/s	100000 Mbit/s
Interface type	QSFP28	QSFP28
Single-mode fiber (SMF) supportedKnown for one	Yes	Unknown — not stated by the source
Fiber optic connectorDiffers	LC	MPO
SFP transceiver standardDiffers	LR4	SR4
Maximum transfer distanceDiffers	10000 m	100 m
WavelengthDiffers	1308 nm	850 nm
Link budgetDiffers	5 dB	6 dB
Ethernet interface type	100 Gigabit Ethernet	100 Gigabit Ethernet
Networking standards	IEEE 802.3ba, IEEE 802.3bm	IEEE 802.3ba, IEEE 802.3bm
Digital Diagnostics Monitoring (DDM)	Yes	Yes
Multi-mode fiber (MMF) supportedKnown for one	Unknown — not stated by the source	Yes
Featuresidentical
Product colour	Silver	Silver
Power1 differ
Power consumption (typical)Differs	4 W	2.5 W
Certificatesidentical
Compliance certificates	RoHS	RoHS
Sustainabilityidentical
Sustainability compliance	Yes	Yes
Operational conditionsidentical
Operating temperature (T-T)	0 - 70 °C	0 - 70 °C
Storage temperature (T-T)	-40 - 85 °C	-40 - 85 °C
Operating relative humidity (H-H)	0 - 85%	0 - 85%
Packaging contentidentical
Quantity per pack	1 pc(s)	1 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.