Product comparison · 2 network switches

D-Link DGS-3120 xStack vs LevelOne PLI-4251 network switch White

20specifications compared
10differ
10identical
55known for one product only

Key differences

Basic switching RJ-45 Ethernet ports quantity
- DGS-3120 xStack:44
- PLI-4251 network switch White:4
SFP/SFP+ slots quantity
- DGS-3120 xStack:4
- PLI-4251 network switch White:0
Supported data transfer rates
- DGS-3120 xStack:10/100/1000 Mbps
- PLI-4251 network switch White:10, 100, 1000 Mbps
Security algorithms
- DGS-3120 xStack:802.1x RADIUS, EAP
- PLI-4251 network switch White:128-bit AES
Product colour
- DGS-3120 xStack:Black
- PLI-4251 network switch White:White
Power over Ethernet (PoE)
- DGS-3120 xStack:Yes
- PLI-4251 network switch White:No
Operating temperature (T-T)
- DGS-3120 xStack:0 - 50 °C
- PLI-4251 network switch White:0 - 40 °C
Storage temperature (T-T)
- DGS-3120 xStack:-40 - 70 °C
- PLI-4251 network switch White:-20 - 70 °C

Side by side

Differences highlightedShow differences only

Comparison of DGS-3120 xStack, PLI-4251
75 specifications	A D-Link DGS-3120 xStack View product	B LevelOne PLI-4251 network switch White Model PLI-4251 View product
Management featuresidentical
Switch typeKnown for one	Managed	Unknown — not stated by the source
Switch layerKnown for one	L2+	Unknown — not stated by the source
Web-based managementKnown for one	Yes	Unknown — not stated by the source
MIB supportKnown for one	RFC 2925, RFC 1321/2284/2865/3580/3748, RFC 2571/2572/2573/2574	Unknown — not stated by the source
Ports & interfaces2 differ
Basic switching RJ-45 Ethernet ports quantityDiffers	44	4
SFP module slots quantityKnown for one	4	Unknown — not stated by the source
SFP/SFP+ slots quantityDiffers	4	0
Console portKnown for one	RJ-45	Unknown — not stated by the source
Power connectorKnown for one	DC-in jack	Unknown — not stated by the source
Gigabit Ethernet (copper) ports quantityKnown for one	Unknown — not stated by the source	4
Fiber ports quantityKnown for one	Unknown — not stated by the source	0
HDMI stacking portsKnown for one	Unknown — not stated by the source	0
PCI-X slotsKnown for one	Unknown — not stated by the source	0
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	0
ExpressCard slotKnown for one	Unknown — not stated by the source	No
Network1 differ
Networking standardsDiffers	IEEE 802.1p, IEEE 802.1x, IEEE 802.3, IEEE 802.3ab, IEEE 802.3af, IEEE 802.3at, IEEE 802.3u	IEEE 802.3, IEEE 802.3ab, IEEE 802.3u
Copper ethernet cabling technologyKnown for one	1000BASE-T, 1000BASE-TX, 100BASE-T, 100BASE-TX, 10BASE-T	Unknown — not stated by the source
Port mirroringKnown for one	Yes	Unknown — not stated by the source
Flow control supportKnown for one	Yes	Unknown — not stated by the source
VLAN supportKnown for one	Yes	Unknown — not stated by the source
ModulationKnown for one	Unknown — not stated by the source	1024-QAM, 16-QAM, 256-QAM, 64-QAM, 8-QAM, BPSK, QPSK
Data transmission1 differ
Supported data transfer ratesDiffers	10/100/1000 Mbps	10, 100, 1000 Mbps
Switching capacityKnown for one	136 Gbit/s	Unknown — not stated by the source
Maximum data transfer rateKnown for one	1 Gbit/s	Unknown — not stated by the source
Packet buffer memoryKnown for one	2 MB	Unknown — not stated by the source
Security1 differ
DHCP featuresKnown for one	DHCP server	Unknown — not stated by the source
Access Control List (ACL)Known for one	Yes	Unknown — not stated by the source
MAC address filteringKnown for one	Yes	Unknown — not stated by the source
Security algorithmsDiffers	802.1x RADIUS, EAP	128-bit AES
Protocolsidentical
Management protocolsKnown for one	SNMP, NLB	Unknown — not stated by the source
Design1 differ
Rack mountingKnown for one	Yes	Unknown — not stated by the source
StackableKnown for one	Yes	Unknown — not stated by the source
Product colourDiffers	Black	White
Cable managementKnown for one	Yes	Unknown — not stated by the source
SafetyKnown for one	CB, cUL, LVD	Unknown — not stated by the source
Housing materialKnown for one	Unknown — not stated by the source	Plastic
Performanceidentical
Flash memoryKnown for one	32 MB	Unknown — not stated by the source
Noise levelKnown for one	48.6 dB	Unknown — not stated by the source
Mean time between failures (MTBF)Known for one	223006.071 h	Unknown — not stated by the source
Compatible operating systemsKnown for one	Unknown — not stated by the source	Windows 98SE/ME/2000/XP/Vista 32b/Win7 32b
Poweridentical
Power sourceKnown for one	AC/DC	Unknown — not stated by the source
Redundant power supply (RPS) supportKnown for one	No	Unknown — not stated by the source
Number of power supply unitsKnown for one	1	Unknown — not stated by the source
Power consumption (typical)Known for one	970.8 W	Unknown — not stated by the source
Power over Ethernet (PoE)1 differ
Power over Ethernet (PoE)Differs	Yes	No
Other featuresidentical
Data transfer rateKnown for one	1000 Mbit/s	Unknown — not stated by the source
Dimensions (WxDxH)Known for one	440 x 380 x 44 mm	Unknown — not stated by the source
Connectivity technologyKnown for one	Wired	Unknown — not stated by the source
Authentication methodKnown for one	EAP	Unknown — not stated by the source
Cabling technologyKnown for one	10/100/1000Base-T(X)	Unknown — not stated by the source
Networking featuresKnown for one	Gigabit Ethernet	Unknown — not stated by the source
Security featuresKnown for one	NetBIOS, NetBEUI, ARP, BPDU	Unknown — not stated by the source
Connectivity LEDsKnown for one	Yes	Unknown — not stated by the source
BandwidthKnown for one	Unknown — not stated by the source	0.5 Gbit/s
Operational conditions2 differ
Operating temperature (T-T)Differs	0 - 50 °C	0 - 40 °C
Storage temperature (T-T)Differs	-40 - 70 °C	-20 - 70 °C
Operating relative humidity (H-H)Known for one	10 - 90%	Unknown — not stated by the source
Storage relative humidity (H-H)Known for one	5 - 90%	Unknown — not stated by the source
Heat dissipationKnown for one	3310.428 BTU/h	Unknown — not stated by the source
Relative humidityKnown for one	Unknown — not stated by the source	10 - 90%
Weight & dimensionsidentical
WeightKnown for one	6.33 kg	Unknown — not stated by the source
WidthKnown for one	Unknown — not stated by the source	105 mm
DepthKnown for one	Unknown — not stated by the source	76 mm
HeightKnown for one	Unknown — not stated by the source	33 mm
Certificates1 differ
CertificationDiffers	FCC, CE, VCCI, IC, C-Tick	HomePlug AV PowerLine, FCC Class B / CE Mark

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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