Adapter Deals & Adapters for Sale

A straightforward way to add Bluetooth to any desktop PC or older laptop that doesn't have it built in, letting you connect wireless headphones, keyboards, mice, or speakers without opening up the machine. Buy Now at Newegg

A straightforward replacement option if your Scientific Atlanta cable modem's original adapter has failed or gone missing, saving you from hunting down an OEM part or buying a new modem over a fixable problem. Buy Now at Newegg

Useful if you're heading to Australia, New Zealand, or nearby countries where the angled Type I plug is standard, and the 4-in-1 set means you can cover multiple device types without carrying separate adapters. Buy Now at Newegg

A solid pick if your LG monitor's original power adapter has failed or gone missing, since third-party replacements like this are typically a fraction of the cost of sourcing one directly from LG. Buy Now at Newegg

A solid pick for embedded developers or hobbyists who need both wired Ethernet and WiFi on a single ESP32-based module, skipping the need to wire up a separate Ethernet controller. Buy Now at Newegg

For desktop users who want to add WiFi 7 and Bluetooth to their PC without replacing their motherboard, this PCIe adapter slots into an open expansion bay and handles both. At $80, it's $10 off the $90 list price. Buy Now at Newegg

Aimed at embedded developers or makers who need reliable wireless communication between microcontrollers without dealing with complex networking protocols, this UART-based mesh module handles the routing logic onboard so you can focus on your application rather than the radio stack. Buy Now at Newegg

A straightforward upgrade for desktop PCs with a failed or missing network port, or for older machines that only have a 100Mbps adapter and want to step up to full gigabit speeds. Buy Now at Newegg

Useful if you need to add a monitor to a laptop or desktop that's run out of HDMI ports, or if your machine doesn't have a video output at all. It handles up to 1080p, so it works for general productivity setups but isn't the right call if you're pushing higher resolutions. Buy Now at Newegg

A straightforward pick for anyone replacing a lost or failed 12V DC power adapter, particularly for devices that need a barrel-tip connector and a reliable regulated output without paying for a brand-name replacement. Buy Now at Newegg

Handy for older stereos, speakers, or car audio systems that lack Bluetooth, since it lets you stream audio wirelessly without replacing the hardware you already own. Buy Now at Newegg

Handy for anyone who needs to read or transfer data from an M.2 NGFF SSD without installing it in a machine, whether you're migrating data, testing a drive, or recovering files from a spare SSD. Buy Now at Newegg

A straightforward fix for desktop PCs that lack a built-in ethernet port or have a failed onboard NIC, giving you a wired network connection through an open PCIe slot. Buy Now at Newegg

Handy for laptops and tablets that lack a built-in Ethernet port, giving you a wired connection when Wi-Fi is too slow or unreliable for what you're doing. Buy Now at Newegg

A straightforward replacement option if your original power adapter for the Xclaim Xi-1 access point has failed or gone missing, saving you from having to source a less certain third-party alternative or track down an OEM unit. Buy Now at Newegg

Useful for adding a second monitor to a laptop or desktop that lacks a spare video output, particularly if your machine has an open USB port but no additional display connectors. Buy Now at Newegg

Useful for desktop PC owners who want to upgrade their wired network speeds beyond standard gigabit, particularly if your router or NAS already supports 2.5Gbps and your motherboard lacks a built-in 2.5G port. The dual-port design means you can connect two devices or use one port for your network and one for a direct device-to-device link. Buy Now at Newegg

A straightforward upgrade for anyone who wants to add surround sound processing to a PC or laptop without opening up the case or installing a dedicated sound card — just plug it into a USB port and it handles the rest. Buy Now at Newegg

Handy for adding a second (or third) monitor to a laptop or desktop without opening up the machine to install a dedicated graphics card — just plug it into a USB 3.0 port and connect your display via HDMI. Buy Now at Newegg