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Cables Blog - Cat6, Cat5e, Cat5, Ethernet Cables, Power Cables, HDMI

Buy Cables Online offers Cat 6 Ethernet Cables ( Cat6 ), Cat 5e Patch Cables ( Cat5e ), Network Patch Cables, Patch Cables, Ethernet Cables, Fiber Optic Cables, Custom Cables, Power Cables, Power Cords, HDMI Cables, Bulk Cables and more.

We are your one stop online resource for high quality cables. Many of our cables are Made in the USA. We stock all types of cable and cable accessories at the most competitive prices. We offer easy product returns within 30 days and a secure shopping experience for your safety.

Datacomm Cables offers IEC and Nema Power Cords in various lengths and colors to meet the needs of your business. Use the Power Cable Matrix to easily find the cables you need.

Our Network Patch Finder makes it easy to find the Ethernet/Fiber/Power Cables you need, all with Quick and Easy Shipping.

Fiber Optic Cables view all

Datacomm Cables ( provides a comprehensive catalog of Fiber Optic Cables (sometimes spelled "fibre optic") and related products. Among our complete line is a wide variety of ready-made Fiber Optic Patch, and we can also custom make them for any application and installation in professional and home environments

Popular: Single Mode LC to LC 9/125 Micron view all

Networking Cables, Data Center Cables view all offers an extensive collections of cables, cords, and accessories to suit your needs. Data center cables, Ethernet cables, Fiber Optic cables, home theater cables, RCA cables, network cables, quick ship pack cables, custom cables, and much more. Whether you are looking for a CAT 6 cable, Cat 5 cable, or USB printer cable, for that new projects, we’ve got everything you need.

Popular: 10 Foot Cat 6 Bootless Ethernet Cables view all

Power Cords Power Cables view all

Datacomm Cables ( has all of the power cables and power cords that you need for your datacenter, office, home office, or other requirements including: C14 to C13 Connectors for PDUs in Racks, C19 to C20 Connectors for PDUs in Racks, 5-15P to C13 Connectors for computers, servers and basically all computer equipment plus many more configurations.

Popular: C14 to C13 Black 15 Amp Power Cords view all

HDMI Cables, Hi-Speed, VGA to HDMI view all

When it comes to connectivity, we've got you covered. Check our selection of HDMI cables or VGA to HDMI conversion equipment for an outstanding home theater experience. If you need to set up your home office or a CCTV network, you can find all the accessories you need right here. Browse to find the solutions you are looking for at just the right price.

Popular: High-Speed 4k HDMI Cable with Ethernet view all

Outdoor Cables view all

Our outdoor ethernet cables are shielded to protect from weather. Whether it is a Small or large outdoor cabling project, we have your cables.

Popular Outdoor Cables: Shielded Burial Cat6 Outdoor-Rated Cables in Black view all

In the 21st century, the internet has ushered in almost unparalleled consumer options. No longer are you limited by what you can purchase in the US or what a US distributor is willing to import from China, Japan, Singapore or Bolivia - now you can order directly from manufacturers in those countries.


In the 21st century, the internet has ushered in almost unparalleled consumer options. No longer are you limited by what you can purchase in the US or what a US distributor is willing to import from China, Japan, Singapore or Bolivia - now you can order directly from manufacturers in those countries. This also presents a certain drawback, however, and that is little to no regulation over those goods. US importers and manufacturers are still bound by US trade laws, which includes labeling laws, but overseas manufacturers are not subject to such laws. In addition, however, even labeling laws are somewhat slack in the US when it comes to electronics. This is why it is very important to buy cables from both a reputable brand and a reputable store or distributor.

How it works

Generally, HD or "standard" HD has a display size of roughly 1,080 pixels per square inch, which is generally referred to as 1080p. 4K or Ultra HD (UHD) means it has a display size of 4,000 pixels per square inch. In addition, where video was once shot at 24 frames per second, it is now sometimes shot at 50 or 60 frames per second. Remember that digital video is essentially just data. A DVD or Blu-Ray disc is just a CD that is capable of holding infinitely more data. A TV is just a monitor that takes data from a DVD, Blu-Ray, game system or the internet and converts it into a picture. Cables and Wi-Fi are the means by which that information is transferred.

Another reason that UHD displays have such high data demands has to do with the number of colors they are capable of displaying. You may have heard of 8-bit, 10-bit or 12-bit color. Those numbers refer to a basic color palette that can be mixed to create a wide gamut of colors. 8-bit color uses 8 base colors to create an overall palette of roughly 16.7-million colors. 12-bit color creates an offering of up to 68.7 billion different colors. All of this is translated into data, which must be encoded onto a disc and uploaded via a cable or streamed via Wi-Fi.

Regardless of how much definition your display (TV) is capable of showing, however, it is only able to show the display size of the data that it receives. So if you use a standard DVD or Blu-Ray player, which are both formatted for 1080p, then you won't get 4K resolution. Cables are the means of transferring information and they are rated for certain data transfer rates. If you use regular HDMI cables with a 4K Blu-Ray player and a UHD TV, you still won't get a 4K picture because standard HDMI cables cannot transfer the data fast enough for full UHD resolution. When your cables and connections are not capable of carrying the data fast enough, you lose the quality and clarity your monitor is capable of delivering.

Why brand matters

While there are certainly lower priced or off-brand cables that can work just fine to deliver an image from your peripheral devices to your monitor, the question is how much data are they capable of delivering? Cables that have slow transfer rates will not be able to transfer data fast enough to deliver the data required to give you the full 4K, 50p, 12-bit color resolution that your monitor is capable of delivering. The problem is that standard HD cables are often labeled 4K cables and sold as such. When purchasing cables for a UHD TV, you should not only work with a reputable retailer, but also a reputable salesperson who can make sure you get the right cables to get the most out of your Ultra High Definition display.

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