Collection: Networking

Which networking option do you actually need?

Most PC builders spend hours on the CPU and GPU, then plug into whatever the ISP gave them and wonder why file transfers crawl or games stutter on Wi-Fi. Networking hardware splits into three tiers, and the differences are about latency, airtime and sustained throughput, not just the number on the box.

Entry level is Gigabit Ethernet and Wi-Fi 6. Gigabit tops out around 110MB/s in real transfers, which is fine for streaming, gaming and most NBN plans. Wi-Fi 6 works well on 5GHz at modest range, but it shares airtime with every other device in the house, so latency spikes when someone starts a big download.

The sweet spot today is 2.5GbE wired with Wi-Fi 7 or Wi-Fi 6E wireless. Most current boards already include 2.5GbE, and it gives you roughly 280MB/s without needing special cabling. Wi-Fi 7 adds 6GHz with wider 320MHz channels and Multi-Link Operation, which lets a device use multiple bands at once. In practice that cuts latency variation, which matters more than headline speed. Australia permits the lower 6GHz band, so you get uncongested spectrum, though range is shorter than 5GHz.

Enthusiast is 10GbE, managed switching and dedicated access points. This suits NAS users, video editors pulling footage over the network, and people running home labs. Diminishing returns hit hard here. If your NAS runs spinning drives or your internet plan is under 1Gbps, 10GbE sits mostly idle. It only pays off when both ends can saturate it, usually with NVMe or a RAID array behind them.

Upgrading and technical nuances

Chipset matters more than brand on the box. For 2.5GbE, Intel's I226-V is the one to look for, as the earlier I225-V had well-known stability issues. Realtek's RTL8125 is cheaper and mostly fine, but driver quality varies by OS. For 10GbE, Marvell/Aquantia AQC113 cards run cooler and cost less than older Intel X550 cards, while Intel X710 and similar SFP+ cards are rock solid but need compatible optics or DAC cables.

Wi-Fi 7 adapters such as Intel's BE200 M.2 module or PCIe cards from TP-Link's Archer range need a matching router to deliver the benefits. A Wi-Fi 7 card on a Wi-Fi 5 router is just a Wi-Fi 5 connection. Wi-Fi 7 also needs a current OS and driver stack, so check support before buying.

On the motherboard side, mainstream AM5 and LGA1851 boards in ranges like ASUS TUF, MSI Tomahawk and Gigabyte AORUS commonly bundle 2.5GbE and Wi-Fi 6E or 7. Check Motherboards listings carefully. Some budget boards still ship with Wi-Fi 6 or a 1GbE port, and a few skip wireless altogether. Upgrading later with a PCIe card is easy, but it uses a slot and may share lanes with an M.2 drive.

For the network itself, consumer mesh kits like TP-Link Deco or Archer BE routers are simple and effective for most homes. If you want VLANs, proper roaming and wired backhaul, look at Ubiquiti UniFi gear or TP-Link's Omada line under TP-Link. A wired access point in the hallway beats three mesh nodes repeating wirelessly every time, because backhaul over cable doesn't halve your bandwidth.

Practical things to check before buying

Start with the slot. A 10GbE card typically needs PCIe x4 or better, and the bottom x16-sized slot on many boards is only wired x4 or even x1 electrically. Fitting a card there can disable an M.2 socket or SATA ports, so check your manual. If you're also running fast Solid State Drives (SSD), make sure the layout doesn't make you choose between storage and networking. Your Graphics Cards / GPU will also block the slots beneath it, particularly with thick triple-slot coolers.

Heat is the next gotcha. 10GbE RJ45 controllers can run hot, often 70°C or more with poor airflow, and a card tucked under a GPU gets almost none. Make sure your Computer Cases have decent intake, or add a fan from Fans, Heatsinks & Cooling to keep air moving across the card.

Cabling is where people get caught. Cat5e handles 2.5GbE comfortably, Cat6 handles 10GbE up to about 55 metres, and Cat6a is the safe choice for full 10GbE across longer runs or noisy environments. Sort out your leads from Cables & Connectors before you tear into walls. Poorly terminated or cheap copper-clad cable causes drops that look like faulty hardware.

For Wi-Fi, antenna placement matters. A rear I/O antenna sitting behind a steel case panel suffers. Use the supplied extension base and put it on the desk where it has line of sight to the router. Also confirm the card needs a USB header for Bluetooth, since an M.2 Wi-Fi module won't carry it on its own. If you're building a full system from scratch, pre-built Computers often have this sorted already.

Finally, your router and switch need to match. A 2.5GbE PC plugged into a Gigabit switch is still running at Gigabit speed.

Brands and local warranty

For consumer and prosumer gear, TP-Link, ASUS, Netgear and Ubiquiti are the names to know. TP-Link covers everything from cheap adapters to Omada business gear and Deco mesh. ASUS leans toward gaming routers with good software. Netgear is strong in switches and Orbi mesh. Ubiquiti suits those who want a proper managed setup with a single controller. For PC network cards, Intel, Marvell and Realtek are the main chipset names, with TP-Link and ASUS selling the finished cards.

Local warranty matters because networking gear fails in annoying ways, like intermittent drops, overheating and firmware bugs, and these are hard to diagnose. Under Australian Consumer Law you have rights regardless of what the box says, but buying through an authorised Australian channel makes claims much smoother. Grey imports might have the wrong power plug, region-locked Wi-Fi channels or no local support at all. Keep your invoice and check the serial number against the brand's Australian warranty policy.

Frequently asked questions

Is 2.5GbE worth it if my internet plan is under 1Gbps?

Yes, if you move files between devices on your home network. Internet speed and LAN speed are separate things. A 2.5GbE link to a NAS or second PC will be noticeably faster than Gigabit, and the hardware costs little extra today.

Do I need Wi-Fi 7 or is Wi-Fi 6E enough?

Wi-Fi 6E is plenty for most people and already gives you the clean 6GHz band. Wi-Fi 7 improves latency consistency and peak speeds, but only if your router supports it. If you're buying a new router anyway, go Wi-Fi 7. If not, don't stress.

Can I use Cat5e for 10GbE?

It might work over very short runs, but it's not reliable. Use Cat6 for short distances or Cat6a for anything in walls. Cabling is the cheapest time to future-proof.

Will a PCIe network card slow down my GPU?

Usually not. On most current boards the GPU uses the top x16 slot with direct CPU lanes, and the network card sits in a chipset-fed slot. Check your motherboard manual to be sure no lanes are shared.

Is wired always better than Wi-Fi for gaming?

Generally yes, because Ethernet has lower and more consistent latency with no airtime contention. A good Wi-Fi 6E or 7 link is close enough for many people, but if your PC sits near the router or you can run a cable, wired is the safer choice.