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Although those two devices do need to share the overall connection speed of the Ethernet cable that runs between the router and the switch, it’s still far more reliable and stable than Wi-Fi which could see the two devices competing for frequency as much as bandwidth.
You can use less Cat5 cables when connecting two networks. When you don’t have enough Ethernet cables and only have one or two long cables, an Ethernet splitter comes in handy. Ethernet splitters are cheap and appear to offer a good solution to network splitting.Instead of a splitter, your best option is to add a mini-switch, but you need to be careful with your wiring topology if you already have multiple other switches in your network. That gives you fast connectivity for two devices (or more if using an adapter) with only one intervening cable, making it much easier to set up and install, and it keeps cable clutter to a minimum. The biggest downside to using an Ethernet adapter is that even with the fastest connection speeds, you're still limited to the bandwidth of the single connection from the Ethernet switch to the adapter. That problem is only exacerbated if you connect more devices to that same adapter. As you can see, the TX pins on Computer-A are wired to the RX pins on Computer-B, and similarly, the RX pins on Computer-A are wired to the TX pins on Computer-B. (For simplicity's sake, I have not wired up pins 4,5,7 & 8, but for completeness they should be wired straight through pin 4 to 4, 5 to 5, etc.)
An Ethernet splitter can be thought of a type of device that isn't a hub or a switch. It is a rather simple device that actually does nothing but connect two pairs of 2 Ethernet cables to a single Ethernet cable. If you don't trust Ethernet splitters then you can actually build a cable that does the exact same thing. RJ45 Ethernet Network Splitter could help to split one network cable to 2 port output, that's convenient to take turns to use different computers. (Please note that cannot support using two cables at the same time) You may also like this: Router VS Switch: What Is the Difference Between Them? How Does Ethernet Splitter WorkWhat is Ethernet splitter? MiniTool provides you with a full introduction here. What Is Ethernet Splitter It's not a "splitter" per se, and shouldn't be marketed as one. It would be better to call it a "cable sharer". Typically, you'd need a greater number of cables to change that dynamic, meaning more cables running across the floor or through walls. More cables mean a more complicated setup, especially if you have to retroactively add additional cables. There is another solution though: an Ethernet cable-sharing kit .
Another downside is that you need a splitter at each end of the main cable. So a splitter doesn’t save you any ports on the router; it still takes up two ports. It's useful to understand what a splitter does. It turns one 8-strand ethernet cable into a what would be, essentially, a pair of sub-standard 4-strand cables that in theory should do Fast Ethernet (100BaseT/TX). Practically this might drop down to 10BaseT speeds, and you need to use a splitter on both ends for it to work. It will take up two ethernet ports on the far end. It will absolutely not work for Gigabit (1000Base) Ethernet, as that requires all 8 strands. These clever devices carry two Ethernet connections across a single wire. The sharing kit includes two splitter devices. The splitter consolidates two Ethernet connections into one RJ45 cable, which is then carried to the destination over a single wall plate connection or a coupler. The second splitter un-splits the connection into two Ethernet connectors for two devices. If you just want to know how to split Ethernet connections, though, you’ve come to the right place. Here’s everything you need to know about Ethernet splitting. Ethernet Splitters 101 If you want the most stable and speedy connection, there's still no beating Ethernet. It’s fast, and most importantly compared to Wi-Fi, reliable. As long as you use a high-quality Ethernet cable with adequate shielding, you don’t need to worry about any kind of interference for your data. But with the growth of ever-faster Wi-Fi standards , and as modern devices trim their ports, getting access to an Ethernet connection isn't always easy – especially if you have lots of colleagues looking to take advantage of scant ports on the local router.Recommended reading: USB Splitter or USB Hub? This Guide to Help You Choose One The Advantages and Disadvantages of Ethernet Splitter NOTE: This Ethernet splitter allows two computers to share one Ethernet line ONE AT A TIME, but it doesn't support both computer to connect onto the internet simultaneously Ethernet couplers are devices used to connect ethernet cable connections from one type to another. There can be various reasons to use a coupler such as to extend network cabling, split a signal allowing for two cables to be connected to a single port or to allow for different network cable types to be connected. Types of Ethernet Couplers
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