Adapter Deals & Adapters for Sale

A solid pick for anyone setting up a wall-mounted iPad system who needs Power over Ethernet instead of running separate power and data lines, simplifying installation for smart home control panels. It's currently priced at $200, matching the standard list price with no current discount. Buy Now at Best Buy

Handy for anyone who works on laptop repairs or upgrades, since it lets you test and diagnose M.2 NGFF WiFi cards outside the laptop chassis before you commit to reinstalling them. Buy Now at Newegg

Networking gear like this suits data centers and HPC setups that need serious throughput, since the dual-port 200GbE/NDR200 design handles high-bandwidth workloads without bottlenecking on a single connection. Buy Now at Newegg

Setting up an older desktop that lacks built-in WiFi is simple with this adapter, since it just plugs into a USB port instead of requiring you to crack open the case. Buy Now at Newegg

A solid pick if your laptop or mini PC only has an M.2 A+E slot free and you want a wired connection faster than standard gigabit, since the RTL8125B chipset handles 2.5G speeds without needing a spare PCIe or USB port. Buy Now at Newegg

Networking closets that need long-haul fiber runs benefit most from this transceiver, since the 1000BASE-LX spec supports single-mode fiber connections up to several kilometers rather than the short reach of standard multi-mode gear. Buy Now at Newegg

Bluetooth cuts out on plenty of older desktops and laptops, and this adapter fixes that without cracking the case open, just plug it into a USB port and pair. Worth grabbing if your PC's built-in Bluetooth is weak or missing entirely, especially for connecting keyboards, mice, or headphones. Buy Now at Newegg

Setting up a home server or NAS box that needs multiple wired connections, this card adds four gigabit ports in one PCIe slot instead of eating up separate expansion slots. Buy Now at Newegg

Grabbing this one makes sense if your desktop or older laptop lacks Bluetooth entirely and you need to connect wireless headphones, keyboards, or a mouse without opening up the case. It's a small, low-cost fix for machines that predate built-in Bluetooth support. Buy Now at Newegg

Handy for older desktops or laptops that lack built-in wireless, since it plugs straight into a USB port to get you online without opening up the case. Newegg's version keeps things simple with basic 150Mbps speeds, which is plenty for browsing and email on a secondary machine. Buy Now at Newegg

Small enough to leave in a laptop's USB port permanently, this dongle adds Bluetooth 5.0 to older desktops or laptops missing the feature entirely, and it's currently $1 off the $11 list price at Newegg. Buy Now at Newegg

Data center admins and HPC builders needing serious throughput will want this one, since 400GbE with PCIe 5.0 support isn't something you find at a discount often. Newegg has it for $1,855, which is $386 (about 17%) off the $2,241 list price. Buy Now at Newegg

Handy for reviving an older Dell laptop that's missing mobile broadband, letting you get online without relying on a hotspot or Wi-Fi. Newegg carries it as a straightforward internal upgrade if your model has the WWAN slot ready to go. Buy Now at Newegg

Anyone dealing with a dead or flaky onboard Ethernet port can add this PCIe card for a reliable wired connection without replacing the whole motherboard, and it's a solid pick if you need a second NIC for a home server or firewall setup. Buy Now at Newegg

Anyone running a home server or NAS setup benefits from the dual-port design, letting you separate traffic or set up link aggregation without adding a second card. It's a solid pick if you're building out a network-attached storage rig and want more bandwidth headroom than a single onboard port provides. Buy Now at Newegg

Anyone dealing with dropped connections or a weak Bluetooth signal on a desktop will notice the difference this makes, especially for wireless keyboards, mice, or headphones set up a few feet from the PC. Buy Now at Newegg

Handy for laptops that ditched the ethernet port but still need a stable wired connection for gaming, streaming, or transferring large files without wifi interference. The 5Gbps speed also makes it a solid match for newer routers where standard gigabit adapters would leave bandwidth on the table. Buy Now at Newegg

Networking pros and IT admins upgrading fiber links to 10G will want this for long-range single-mode connections up to 10km, and it's currently $4 off the list price at Newegg. Buy Now at Newegg

Home lab builders and small office setups looking to move beyond gigabit speeds will find this card useful for connecting NAS devices or handling multiple high-bandwidth streams at once. The dual-port setup lets you run redundant connections or split traffic across two network segments without adding a second card. Buy Now at Newegg

Anyone running a home lab, NAS, or setup that needs link aggregation or failover will get the most out of this, since two 2.5Gbps ports on one card beat relying on a single onboard NIC. Buy Now at Newegg

Home lab tinkerers and anyone stuck with a slow onboard NIC can add this card for a straightforward upgrade to 2.5Gbps wired speeds, provided your router and modem also support it. Buy Now at Newegg