Product comparison · 2 wired routers

Linksys LN3121-KE wired router Gigabit Ethernet Black vs TP-Link ER7406 wired router Gigabit Ethernet Black

23specifications compared
10differ
13identical
75known for one product only

Key differences

The TP-Link ER7406 wired router Gigabit Ethernet Black has 1 more Ethernet LAN (RJ-45) ports than the Linksys LN3121-KE wired router Gigabit Ethernet Black (5 vs 4). The TP-Link ER7406 wired router Gigabit Ethernet Black has 79 mm more width than the Linksys LN3121-KE wired router Gigabit Ethernet Black (294 mm vs 215 mm). The Linksys LN3121-KE wired router Gigabit Ethernet Black has 10 mm more depth than the TP-Link ER7406 wired router Gigabit Ethernet Black (150 mm vs 140 mm). Only the TP-Link ER7406 wired router Gigabit Ethernet Black has 3G/4G USB modem compatibility. Only the TP-Link ER7406 wired router Gigabit Ethernet Black has SFP WAN.

3G/4G USB modem compatibility
- LN3121-KE wired router Gigabit Ethernet Black:No
- ER7406 wired router Gigabit Ethernet Black:Yes
SFP WAN
- LN3121-KE wired router Gigabit Ethernet Black:No
- ER7406 wired router Gigabit Ethernet Black:Yes
Ethernet LAN (RJ-45) ports
- LN3121-KE wired router Gigabit Ethernet Black:4
- ER7406 wired router Gigabit Ethernet Black:5
Rack mounting
- LN3121-KE wired router Gigabit Ethernet Black:No
- ER7406 wired router Gigabit Ethernet Black:Yes
Storage temperature (T-T)
- LN3121-KE wired router Gigabit Ethernet Black:-20 - 70 °C
- ER7406 wired router Gigabit Ethernet Black:-40 - 70 °C
Width
- LN3121-KE wired router Gigabit Ethernet Black:215 mm
- ER7406 wired router Gigabit Ethernet Black:294 mm
Depth
- LN3121-KE wired router Gigabit Ethernet Black:150 mm
- ER7406 wired router Gigabit Ethernet Black:140 mm
Height
- LN3121-KE wired router Gigabit Ethernet Black:215 mm
- ER7406 wired router Gigabit Ethernet Black:44 mm

Side by side

Differences highlightedShow differences only

Comparison of LN3121-KE, ER7406
98 specifications	A Linksys LN3121-KE wired router Gigabit Ethernet Black Model LN3121-KE View product	B TP-Link ER7406 wired router Gigabit Ethernet Black Model ER7406 View product
WAN connection2 differ
Ethernet WAN	Yes	Yes
DSL WAN	No	No
SIM card slot	No	No
3G/4G USB modem compatibilityDiffers	No	Yes
SFP WANDiffers	No	Yes
Network1 differ
Networking standardsDiffers	IEEE 802.11a, IEEE 802.11ac, IEEE 802.11ax, IEEE 802.11b, IEEE 802.11g	IEEE 802.1D, IEEE 802.3, IEEE 802.3ab, IEEE 802.3u, IEEE 802.3x, IEEE 802.3z
Ethernet interface type	Gigabit Ethernet	Gigabit Ethernet
Ethernet LANKnown for one	Yes	Unknown — not stated by the source
Ethernet LAN data rates	10,100,1000 Mbit/s	10,100,1000 Mbit/s
Data transfer rateKnown for one	5400 Mbit/s	Unknown — not stated by the source
Port forwardingKnown for one	Yes	Unknown — not stated by the source
Automatic channel selectionKnown for one	Yes	Unknown — not stated by the source
Supports ISDN connectionKnown for one	No	Unknown — not stated by the source
Frequency rangeKnown for one	5.470 - 5.850 GHz	Unknown — not stated by the source
Static routeKnown for one	Unknown — not stated by the source	Yes
VLAN supportKnown for one	Unknown — not stated by the source	Yes
Mobile networkidentical
Mobile network generationKnown for one	Not supported	Unknown — not stated by the source
DSL featuresidentical
Internal modemKnown for one	No	Unknown — not stated by the source
Management featuresidentical
Web-based management	Yes	Yes
Quality of Service (QoS) supportKnown for one	Yes	Unknown — not stated by the source
Universal Plug and Play (UPnP)Known for one	No	Unknown — not stated by the source
Priority mappingKnown for one	Yes	Unknown — not stated by the source
Reset button	Yes	Yes
WPS push buttonKnown for one	Yes	Unknown — not stated by the source
Firmware upgradeableKnown for one	Yes	Unknown — not stated by the source
Ports & interfaces1 differ
Ethernet LAN (RJ-45) portsDiffers	4	5
WAN/Ethernet LAN ports quantityKnown for one	1	Unknown — not stated by the source
WAN ports quantityKnown for one	1	Unknown — not stated by the source
Number of console portsKnown for one	0	Unknown — not stated by the source
USB charging portKnown for one	Yes	Unknown — not stated by the source
USB ports quantity	1	1
USB versionKnown for one	USB 3.2 Gen 2x2	Unknown — not stated by the source
DC-in jackKnown for one	Yes	Unknown — not stated by the source
Installed SFP modules quantityKnown for one	Unknown — not stated by the source	1
Security1 differ
Security algorithmsDiffers	WPA2, WPA3	128-bit AES, 192-bit AES, 256-bit AES, DES, MD5, SHA-1, SHA-2, SHA-384, SHA-512
FirewallKnown for one	Yes	Unknown — not stated by the source
Firewall securityKnown for one	SPI	Unknown — not stated by the source
IP address filteringKnown for one	Yes	Unknown — not stated by the source
Guest accessKnown for one	Yes	Unknown — not stated by the source
URL filteringKnown for one	Unknown — not stated by the source	Yes
DoS attack preventionKnown for one	Unknown — not stated by the source	Yes
ARP attack preventionKnown for one	Unknown — not stated by the source	Yes
ICMP attack preventionKnown for one	Unknown — not stated by the source	Yes
VPN tunnels quantityKnown for one	Unknown — not stated by the source	50
Packaging contentidentical
AC adapter includedKnown for one	Yes	Unknown — not stated by the source
ManualKnown for one	Yes	Unknown — not stated by the source
Quick installation guide	Yes	Yes
Quick start guideKnown for one	Yes	Unknown — not stated by the source
User Guide on CD-ROMKnown for one	No	Unknown — not stated by the source
Batteries includedKnown for one	No	Unknown — not stated by the source
Cables includedKnown for one	Unknown — not stated by the source	AC
Certificatesidentical
PSTI certifiedKnown for one	Yes	Unknown — not stated by the source
Waste Electrical and Electronic Equipment (WEEE) complianceKnown for one	Yes	Unknown — not stated by the source
Sustainability complianceKnown for one	Yes	Unknown — not stated by the source
Compliance certificatesKnown for one	Unknown — not stated by the source	CE, Federal Communications Commission (FCC), RoHS
Supplier featuresidentical
Product or Article Information Sheet available?Known for one	Yes	Unknown — not stated by the source
Featuresidentical
Built-in processorKnown for one	Yes	Unknown — not stated by the source
Processor manufacturerKnown for one	Qualcomm	Unknown — not stated by the source
Processor frequencyKnown for one	1000 MHz	Unknown — not stated by the source
Flash memoryKnown for one	Unknown — not stated by the source	128 MB
Internal memoryKnown for one	Unknown — not stated by the source	512 MB
Internal memory typeKnown for one	Unknown — not stated by the source	DDR4
Windows operating systems supportedKnown for one	Unknown — not stated by the source	Windows 10, Windows 2000, Windows 7, Windows 8, Windows 8.1, Windows 98SE, Windows NT, Windows Vista, Windows XP
Mac operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Linux operating systems supportedKnown for one	Unknown — not stated by the source	Yes
Design1 differ
Product colour	Black	Black
Housing materialKnown for one	Plastic	Unknown — not stated by the source
Rack mountingDiffers	No	Yes
Wall mountableKnown for one	No	Unknown — not stated by the source
LED indicatorsKnown for one	Light	Unknown — not stated by the source
Built-in displayKnown for one	No	Unknown — not stated by the source
On/off switchKnown for one	No	Unknown — not stated by the source
Country of originKnown for one	Vietnam	Unknown — not stated by the source
Antennaidentical
Antenna typeKnown for one	External	Unknown — not stated by the source
Antenna gain level (max)Known for one	2.92 dBi	Unknown — not stated by the source
Antennas quantityKnown for one	4	Unknown — not stated by the source
Detachable antenna(s)Known for one	No	Unknown — not stated by the source
Poweridentical
Power source typeKnown for one	AC	Unknown — not stated by the source
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50/60 Hz	50/60 Hz
Output voltageKnown for one	12 V	Unknown — not stated by the source
Output currentKnown for one	2 A	Unknown — not stated by the source
Power consumption (max)Known for one	Unknown — not stated by the source	7.5 W
Operational conditions1 differ
Operating temperature (T-T)	0 - 50 °C	0 - 50 °C
Storage temperature (T-T)Differs	-20 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 90%
Storage relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 90%
Weight & dimensions3 differ
WidthDiffers	215 mm	294 mm
DepthDiffers	150 mm	140 mm
HeightDiffers	215 mm	44 mm
WeightKnown for one	710 g	Unknown — not stated by the source
Packaging dataidentical
Package widthKnown for one	225 mm	Unknown — not stated by the source
Package depthKnown for one	87 mm	Unknown — not stated by the source
Package heightKnown for one	240 mm	Unknown — not stated by the source
Package weightKnown for one	1.15 kg	Unknown — not stated by the source
Package typeKnown for one	Box	Unknown — not stated by the source
Protocolsidentical
DHCP serverKnown for one	Unknown — not stated by the source	Yes
DMZ supportKnown for one	Unknown — not stated by the source	Yes

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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