Computer Cable Deals & Computer Cables for Sale

Designed for data center and high-performance networking environments where you need 400Gb/s throughput over multimode fiber, this OSFP SR4 transceiver from Mellanox (now NVIDIA) handles short-reach connections up to 100 meters. At $1,151, that's $747 off the $1,898 list price. Buy Now at Newegg

Straightforward bulk networking cable for anyone setting up a wired home network, home office, or media room where Wi-Fi reliability is a concern. Buy Now at Newegg

Useful if you're building or working inside a case where the front panel header connectors are awkward to reach, since this cable gives you extra slack to plug in power, reset, and LED leads without contorting your hands in tight spaces. Buy Now at Newegg

Update: The price has changed to $5.99 since this was originally published.

A short Cat 8 cable is useful if you need a direct wired connection between two nearby devices, like a router and a desktop, and at $6 it's $0.30 off the list price. Buy Now at Amazon

Update: The price has changed to $25.71 since this was originally published.

A 30-foot Cat 8 cable covers most home office or living room runs where you want a wired connection without dealing with Wi-Fi inconsistency, and at $25, it's about $5 off the list price. Buy Now at Amazon

Handy for anyone pulling data off an old laptop or desktop hard drive without reinstalling it into a machine — you just plug the drive directly into a USB port and access it like an external drive. Buy Now at Newegg

Handy for DIY builders who want to test a motherboard outside of a case, or anyone replacing a worn-out or broken front panel power switch without sourcing the full header cable assembly. Buy Now at Newegg

Handy for desktop PC builders who need to power more SATA drives than their power supply has connectors for, splitting one SATA power output into two without adding another cable run. Buy Now at Newegg

A short cable worth having on hand if you use external hard drives that still rely on Micro-B connectors, at $12 with no discount off list price. Buy Now at Best Buy

Lets you power a graphics card from a spare SATA connector on your PSU, which is useful if your power supply doesn't have enough PCIe cables to support an additional GPU. Buy Now at Newegg

A niche but practical pickup for anyone running a multi-GPU mining rig or a server build that needs to convert 6-pin PCIe connectors to 8-pin without running a rats nest of individual cables. The 17-port board handles the conversion in bulk, which cuts down on cable clutter considerably when you're dealing with a large number of cards. Buy Now at Newegg

Handy for builds where your PSU cables fall just short of reaching the GPU, or when cable management requires routing power through a tight or awkward path. Buy Now at Newegg

Handy to have if you're installing a graphics card that requires an 8-pin PCIe connector but your power supply only has 6-pin outputs, letting you combine two 6-pin connectors into one 8-pin without replacing the PSU. Buy Now at Newegg

Small form-factor pluggable (SFP) transceivers are typically fiber-based, so this RJ45 variant is worth noting if you need to run copper Ethernet over Cat5e into an SFP port on your switch or router without pulling new fiber runs. Buy Now at Newegg

Useful if you're adding a GPU to a system that lacks dedicated PCIe power connectors, letting you draw power from available SATA connections instead. Buy Now at Newegg

Useful if your GPU power connector sits in an awkward spot inside your case and the cable from your PSU doesn't quite reach without pulling tight or routing poorly. Buy Now at Newegg

A straightforward replacement part for anyone upgrading or adding a SATA drive to an HP EliteDesk 400, 600, or 800 G1/G2 SFF desktop, where the original cable is missing or damaged. Buy Now at Newegg

Useful if you're upgrading to a newer GPU that uses the 12-pin (or 12VHPWR) connector but your power supply only has standard 8-pin PCIe cables, which covers most PSUs made before 2021 or so. Buy Now at Newegg

A direct-attach copper cable for short-distance 10GbE connections between switches, servers, or storage devices in the same rack or adjacent racks, where you want a low-latency, low-power alternative to a fiber transceiver setup. Buy Now at Newegg

Useful if you need a short, reliable cable run between a router, switch, or wall jack and a nearby device, and want something that won't catch on surrounding cables when you unplug it. Buy Now at Newegg

A 10-pack of DB9-to-RJ45 adapters is useful if you're working with legacy serial equipment or running RS-232 connections over structured cabling, where you need to terminate or extend signals through standard RJ45 jacks without soldering or custom cables. Buy Now at Newegg

A 35-foot Cat6 patch cable works well for running a wired connection across a room when Wi-Fi isn't reliable enough, and the snagless boot protects the clip from breaking when routing through tight spaces. At $24, that's about $9 off the $33 list price. Buy Now at Newegg