Computer Accessory Deals & Computer Accessories for Sale

Useful if you have an older power supply with 8-pin connectors and need to run a newer GPU that requires a 12-pin power input, like certain Nvidia RTX 30-series cards. Buy Now at Newegg

Riser cards like this are used primarily for cryptocurrency mining rigs, where you need to position multiple GPUs away from the motherboard to improve airflow and fit more cards in an open-air frame. If you're building or expanding a multi-GPU setup, this is the type of component you'll need to connect each card back to a PCIe x1 slot via USB cable. Buy Now at Newegg

Handy for anyone who wants to add a USB-C port to an older device or enclosure that has a standard USB-B connection, essentially bridging the gap without replacing internal hardware. Buy Now at Newegg

A straightforward add-on for desktop PC users who need Thunderbolt 3 connectivity on a motherboard that didn't ship with it, giving you the 40Gbps transfer speeds and daisy-chaining support that Thunderbolt brings to external drives, displays, and docks. Buy Now at Newegg

Designed to get your desktop tower off the floor or desk surface, this mount secures it underneath your desk and frees up space in your work area — useful if you're working in a tight setup or just want a cleaner look. Buy Now at Newegg

Handy if you need a little more reach between your motherboard fan header and a case fan that's just short of the connector. Buy Now at Newegg

Handy for anyone pulling data off an old laptop or desktop hard drive without putting it in an enclosure — just plug the drive in directly and it shows up like an external drive on your computer. Buy Now at Newegg

Handy for anyone who needs to access or transfer data from a bare 2.5" or 3.5" SATA hard drive or SSD without installing it into a machine — plug it into a USB port and it shows up like an external drive. Buy Now at Newegg

Handy for anyone running two computers off a single desk setup, since it lets you switch a keyboard, mouse, or other USB peripherals between machines with one button press instead of swapping cables manually. Buy Now at Newegg

Handy for a dual-workstation setup where you want two computers to share the same USB peripherals, like a keyboard, mouse, or printer, without physically swapping cables between machines. Buy Now at Newegg

Designed as a direct replacement for the cooling fan in HP Pavilion HDX16 and X18 series laptops, this is a straightforward fix if your machine is overheating or the original fan has stopped working. Buy Now at Newegg

Handy for electronics hobbyists or makers who need to step down a voltage source to a specific output level without building a regulator circuit from scratch. Buy Now at Newegg

A mouse jiggler keeps your computer from going to sleep or showing as idle, which matters if you work remotely and your status is monitored, or if you run long processes that shouldn't be interrupted by a screensaver or lock screen. Buy Now at Newegg

Designed as a direct replacement for the cooling system in the 17-inch MacBook Pro A1297, this fan is the practical fix if yours has started running loud, slowing down, or throwing thermal warnings. Buy Now at Newegg

Useful if your HP 250 or 255 series laptop is running hot, shutting down unexpectedly, or making grinding noises from the fan area, as those are usually signs the cooling fan needs replacing. Buy Now at Newegg

A mouse jiggler keeps your computer from going to sleep or showing as idle, which matters if you work remotely and your status is monitored, or if you run long processes that shouldn't be interrupted by a screensaver or lock screen. Buy Now at Newegg

Handy for dual-PSU builds where your second power supply sits too far from the motherboard to reach with the stock cables, adding a foot of slack without requiring a full cable replacement. Buy Now at Newegg

A formatter board is the logic board that controls communication between your printer and computer, so this is a component-level repair part for the HP 1312nfi — useful if your printer powers on but won't process print jobs or communicate with your network. Buy Now at Newegg

Designed for network engineers expanding or upgrading Juniper infrastructure, this QSFP+ transceiver module handles 40GbE connectivity and slots directly into compatible Juniper switches and routers without needing additional adapters. Buy Now at Newegg