Product comparison · 2 network transceiver modules

Allied Telesis AT-SPBD20DUAL-14 network transceiver module Fiber optic 1000 Mbit/s SFP vs Dell QSFP+ ESR

4specifications compared
3differ
1identical
23known for one product only

Key differences

Maximum data transfer rate
- AT-SPBD20DUAL-14 network transceiver module Fiber optic 1000 Mbit/s SFP:1000 Mbit/s
- QSFP+ ESR:40000 Mbit/s
Interface type
- AT-SPBD20DUAL-14 network transceiver module Fiber optic 1000 Mbit/s SFP:SFP
- QSFP+ ESR:QSFP+
Operating temperature (T-T)
- AT-SPBD20DUAL-14 network transceiver module Fiber optic 1000 Mbit/s SFP:-40 - 185 °F
- QSFP+ ESR:0 - 70 °C

Side by side

Differences highlightedShow differences only

Comparison of AT-SPBD20DUAL-14, QSFP+ ESR
27 specifications	A Allied Telesis AT-SPBD20DUAL-14 network transceiver module Fiber optic 1000 Mbit/s SFP Model AT-SPBD20DUAL-14 View product	B Dell QSFP+ ESR View product
Performance2 differ
SFP transceiver type	Fiber optic	Fiber optic
Maximum data transfer rateDiffers	1000 Mbit/s	40000 Mbit/s
Interface typeDiffers	SFP	QSFP+
Single-mode fiber (SMF) supportedKnown for one	Yes	Unknown — not stated by the source
Fiber optic connectorKnown for one	LC	Unknown — not stated by the source
Maximum transfer distanceKnown for one	20000 m	Unknown — not stated by the source
Tx wavelength (max)Known for one	1490 nm	Unknown — not stated by the source
Rx wavelength (max)Known for one	1310 nm	Unknown — not stated by the source
Tx power (min)Known for one	-8 dBmW	Unknown — not stated by the source
Tx power (max)Known for one	-3 dBmW	Unknown — not stated by the source
Link budgetKnown for one	15 dB	Unknown — not stated by the source
Duplex systemKnown for one	Full	Unknown — not stated by the source
Digital Diagnostics Monitoring (DDM)Known for one	Yes	Unknown — not stated by the source
Fiber ports quantityKnown for one	2	Unknown — not stated by the source
Multi-mode fiber (MMF) supportedKnown for one	Unknown — not stated by the source	Yes
Fiber cable diameters supported (core/cladding)Known for one	Unknown — not stated by the source	50/125 µm
Cabling technologyKnown for one	Unknown — not stated by the source	40GBASE-ESR
Featuresidentical
Product colourKnown for one	Metallic	Unknown — not stated by the source
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Operational conditions1 differ
Operating temperature (T-T)Differs	-40 - 185 °F	0 - 70 °C
Storage temperature (T-T)Known for one	Unknown — not stated by the source	-40 - 85 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 80%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 85%
Packaging contentidentical
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Other featuresidentical
RX sensitivityKnown for one	-23 dB	Unknown — not stated by the source
Certificatesidentical
CertificationKnown for one	Unknown — not stated by the source	MSA

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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