Read the product description carefully: There is NO need for an RJ45 (ethernet cable/network cable) coming from your modem/router and it magically splits into two SIMULTANEOUS network connections (with unique IP addresses) is divided). no It does, however, take an RJ45 and do one of two things with it: 1) split the RJ45 into two working RJ45s, but only one of those cables can be active at a time, or 2) if you're running two simultaneous RJ45s in one of those splitters/adapters.... then start your serviceline.... Then add another splitter/adapter at the other end of the service line.... This will split your single service line back into two working RJ45s (exactly what the item description says if you read carefully). Why do you want to do that you ask? Let's say you have a business, you've expended a lot of resources running RJ45/network cabling: it goes through the ceiling, the floor, maybe through the retail floor or through several walls, ending up at a workplace. . 6 months later you have decided to expand your reception with a second workplace. Now ask yourself: Are you willing to put in all the time and energy it would take someone to draw a second line through this whole mess? Or would it be easier to just buy these splitters, place one at each end of the line with a couple of short ethernet cables, plug them in and you're done?
TP-Link Archer T4U Plus AC1300 USB 3.0 WiFi Network Adapter
29 Review
π ASUS USB-BT400 USB Bluetooth Dongle Receiver - Compatible with Laptops and PCs, Plug and Play for Windows 10/8/7/XP. Supports Printers, Phones, Headsets, Speakers, Keyboards, and Controllers in Black.
79 Review
High Gain Wireless Network Adapter - TP-Link Nano USB Wifi Dongle with 150Mbps Speed for PC Desktops and Laptops. Compatible with Win10/8.1/8/7/XP Linux 2.6.18-4.4.3, Mac OS 10.9-10.15 (TL-WN722N)
46 Review
Enhance Internet Speed with TP-Link AC1200 Wireless Dual Band USB Adapter (Archer T4U V1)
40 Review
UGREEN USB 3.0 Ethernet Adapter Hub with RJ45: Fast Gigabit Ethernet Converter, 3 Ports USB 3.0 Hub Compatible for MacBook, iMac, Surface Pro, Chromebook, Laptop, PC
11 Review
π StarTech.com NETRS232 Serial to IP Ethernet Device Server - DIN Rail Mountable - Serial Device Server - Serial Over IP Device Server (Black)
4 Review
π USR-TCP232-410s: RS232/RS485 Serial to Ethernet Adapter/IP Device Server with DHCP/DNS Support
4 Review
HB-UMLS Sabrent USB 2.0 Hub with 4 Ports and LED Power Switches for Each Port
12 Review