Zyxel NBG420N wireless router vs Zyxel X550N wireless router

Comparison of NBG420N, X550N

22 specifications	A Zyxel NBG420N wireless router Model NBG420N View product	B Zyxel X550N wireless router Model X550N View product
Networkidentical
Ethernet LAN	Yes	Yes
Supports ISDN connection	No	No
VPN tunnels quantityKnown for one	—Unknown — not stated by the source	2
Management featuresidentical
Quality of Service (QoS) support	Yes	Yes
Securityidentical
MAC address filteringKnown for one	—Unknown — not stated by the source	No
DMZ supportKnown for one	—Unknown — not stated by the source	Yes
Protocolsidentical
DHCP client	Yes	Yes
DHCP server	Yes	Yes
Universal Plug and Play (UPnP)	Yes	Yes
Antennaidentical
Antenna gain level (max)Known for one	—Unknown — not stated by the source	2 dBi
Operational conditionsidentical
Operating relative humidity (H-H)	20 - 85%	20 - 85%
Storage relative humidity (H-H)	20 - 90%	20 - 90%
Operating temperature (T-T)Known for one	0 - 40 °C	—Unknown — not stated by the source
Storage temperature (T-T)Known for one	-20 - 60 °C	—Unknown — not stated by the source
Other features1 differ
Data transfer rateKnown for one	—Unknown — not stated by the source	300 Mbit/s
Input current	1 A	1 A
Power supply typeDiffers	12 V DC	18 VDC
xDSL connection	No	No
Weight (imperial)Known for one	—Unknown — not stated by the source	0.363 kg (0.8 lbs)
Dimensions (WxDxH)Known for one	162 x 115 x 33 mm	—Unknown — not stated by the source
Ports & interfacesidentical
Ethernet LAN (RJ-45) portsKnown for one	1	—Unknown — not stated by the source
Weight & dimensionsidentical
WeightKnown for one	230 g	—Unknown — not stated by the source

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.