Tech From Alex

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189 reviews & guides.

White wireless router with a blue Ethernet cable plugged into a yellow LAN port
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PoE

PoE (IEEE 802.3af) is Type 1 Power over Ethernet: about 15.4 W at the switch or injector and about 12.95 W at the device after cable loss, enough for many VoIP phones, basic IP cams, and lighter APs.

Rows of network servers and Ethernet cabling in a data center aisle
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Wake-on-LAN

Wake-on-LAN (WoL) is a NIC feature that lets a magic packet on the LAN power a sleeping or soft-off PC, mini PC, or NAS back on so you can reach it without pressing the power button.

Rackmount storage array with lit hard drive bays in a server rack
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SMB

SMB (Server Message Block) is the Windows-native network file-sharing protocol: clients mount shares like \\NAS\folder over TCP 445, and most home NAS boxes speak it so PCs and Macs can treat network storage like a local drive.

Person using a laptop on a wireless home network
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Wi-Fi 6E

Wi-Fi 6E is Wi-Fi 6 (802.11ax) plus the new 6 GHz band: wider clean channels, less congestion from older 2.4/5 GHz clients, and a clearer path to multi-gig wireless when your devices and AP both speak 6E.

Person at a desk plugging blue Ethernet cables into a network switch
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PoE+

PoE+ (IEEE 802.3at) is Type 2 Power over Ethernet: about 30 W at the switch or injector and 25.5 W at the device after cable loss, enough for many Wi-Fi 6 APs, PTZ cameras, and VoIP phones.

Silver padlock resting on the keyboard of an open silver laptop, suggesting Wi-Fi and network security
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WPA3

WPA3 (Wi-Fi Protected Access 3) is the current Wi-Fi security suite: SAE replaces the old PSK handshake, offline dictionary attacks get much harder, and Protected Management Frames plus optional 192-bit enterprise mode round out the upgrade from WPA2.

Macro close-up of a dark printed circuit board with copper pads, silver capacitors, and a square surface-mount chip
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MoCA

MoCA (Multimedia over Coax Alliance) turns existing coax into a wired Ethernet path, with MoCA 2.5 commonly hitting about 2.5 Gbps between rooms that share the same coax plant.