Product comparison · 2 network transceiver modules

D-Link DEM-220R network transceiver module Fiber optic 100 Mbit/s SFP 1550 nm vs Dell 40GbE QSFP+ SR

4specifications compared
3differ
1identical
26known for one product only

Key differences

Maximum data transfer rate
- DEM-220R network transceiver module Fiber optic 100 Mbit/s SFP 1550 nm:100 Mbit/s
- 40GbE QSFP+ SR:40000 Mbit/s
Interface type
- DEM-220R network transceiver module Fiber optic 100 Mbit/s SFP 1550 nm:SFP
- 40GbE QSFP+ SR:QSFP+
Wavelength
- DEM-220R network transceiver module Fiber optic 100 Mbit/s SFP 1550 nm:1550 nm
- 40GbE QSFP+ SR:850 nm

Side by side

Differences highlightedShow differences only

Comparison of DEM-220R, 40GbE QSFP+ SR
30 specifications	A D-Link DEM-220R network transceiver module Fiber optic 100 Mbit/s SFP 1550 nm Model DEM-220R View product	B Dell 40GbE QSFP+ SR View product
Performance3 differ
SFP transceiver typeKnown for one	Fiber optic	Unknown — not stated by the source
Maximum data transfer rateDiffers	100 Mbit/s	40000 Mbit/s
Interface typeDiffers	SFP	QSFP+
Single-mode fiber (SMF) supportedKnown for one	Yes	Unknown — not stated by the source
Fiber cable diameters supported (core/cladding)Known for one	9/125 µm	Unknown — not stated by the source
SFP transceiver standardKnown for one	BX-U	Unknown — not stated by the source
WavelengthDiffers	1550 nm	850 nm
Tx power (min)Known for one	-14 dBmW	Unknown — not stated by the source
Tx power (max)Known for one	-8 dBmW	Unknown — not stated by the source
Rx power (min)Known for one	-32 dBmW	Unknown — not stated by the source
Rx power (max)Known for one	-3 dBmW	Unknown — not stated by the source
Networking standardsKnown for one	IEEE 802.3ah	Unknown — not stated by the source
Maximum transfer distanceKnown for one	Unknown — not stated by the source	150 m
Featuresidentical
Product colourKnown for one	Blue, Metallic	Unknown — not stated by the source
Housing materialKnown for one	Metal	Unknown — not stated by the source
Hot-swapKnown for one	Yes	Unknown — not stated by the source
Poweridentical
Input voltageKnown for one	3.3 V	Unknown — not stated by the source
Maximum currentKnown for one	0.3 A	Unknown — not stated by the source
Certificatesidentical
SafetyKnown for one	TUV, UL, FDA	Unknown — not stated by the source
CertificationKnown for one	FCC, ICES-003, CE, VCCI	Unknown — not stated by the source
Operational conditionsidentical
Operating temperature (T-T)Known for one	0 - 85 °C	Unknown — not stated by the source
Storage temperature (T-T)Known for one	-40 - 85 °C	Unknown — not stated by the source
Weight & dimensionsidentical
WidthKnown for one	55.5 mm	Unknown — not stated by the source
DepthKnown for one	28.1 mm	Unknown — not stated by the source
HeightKnown for one	13.4 mm	Unknown — not stated by the source
WeightKnown for one	19.1 g	Unknown — not stated by the source
Packaging contentidentical
Quantity per packKnown for one	1 pc(s)	Unknown — not stated by the source
Other featuresidentical
RX sensitivityKnown for one	-32 dB	Unknown — not stated by the source
Logistics dataidentical
Harmonized System (HS) codeKnown for one	Unknown — not stated by the source	85369010

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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