Everything on your computer - documents, photos, videos, software, web browsers, visuals - is composed of a unique combination of 0s and 1s [2]. Everything on your computer - again, documents, photos, videos, software, web browsers, visuals - are composed of bytes. Whenever data is relayed around the computer, your computer sends a flickering electrical pulse along the copper wires connectors that connect different hardware units.
A computer bus is a superhighway that connects different parts of the city. The best highways have a large number of lanes. More lanes equal a better flow of traffic. The same is true with computer buses. One of these highways in your computer connects the motherboard with storage. But each is built a little differently, and so the speed of traffic is different on each one [3].
Serial communication means that the highway has both northbound and southbound or, eastbound and westbound lanes:. Serial communication replaced parallel communication, which is now obsolete in most computers. In the days of parallel communication, incoming data and outgoing data were transmitted through separate cables.
Imagine having 2 highways, one with only northbound lanes, and the other with only southbound lanes, with the highways located a mile apart from one another. The nice thing about parallel communication was that each highway had a large number of lanes and could handle more traffic at once.
But it had problems:. There was another big problem. Electric currents create small magnetic fields. This causes the data to be communicated more slowly, or not at all sometimes. Storage is a very important neighborhood. All the bytes that make up your computer files live in storage. But they leave storage frequently. You navigate to the Documents folder and you double-click on the document to open it up. SATA replaces it. Rather, storage drives may be built with SATA connectors.
In a SATA cable, all 4 wires are placed within the same cable. In a SAS cable, the 4 wires are separated into 2 different cables. Why divide the wires between 2 cables? So you can connect more devices to one another. With a SATA cable, you can only link the motherboard and the storage drive.
You could hook up an expansion device, but that takes up valuable room inside your computer. With a SAS cable, you can hook up the motherboard to both a storage drive and another piece of hardware that has SAS connectors.
If storing files is one of your priorities, you should get a computer or an external hard drive that utilizes SATA data transfer connections. SATA works best when data is being transferred into the storage drive. It works at a slower pace when it transfers data out of the storage drive. SAS is also a good component to have in your computer if you use your computer for processing-intensive work, like video editing, visual effects creation, or animation. SAS is an all-around faster technology than SATA because it transfers data out of storage just as quickly as it transfers data into storage.
And most creative professionals use multiple hard drives, anyway. SAS hardware is more complicated, and that makes it more expensive. That means that SATA tech is likely to run for well over a million hours before it needs to be replaced [7].
SAS is built with integrated technologies that make it especially useful for servers and workstations.
Servers and workstations conduct so many transfers of temporary data that having RAID-capable technology is a necessity [8]. Since SAS technology usually connects more than one piece of circuitry, it can reroute data through a secondary highway if the primary highway fails.
With each revision, standards have risen, particularly when it comes to transfer speeds. Hard drives also connect directly to power with a separate cable. SAS cables vary considerably in length and purpose, but most modern SAS cables have 26 to 36 pins and are powerful enough to support multiple devices and backplanes. Meanwhile, SATA's data connector has seven pins, or conductors: three grounds and four active data lines. At the opposite end of the cable, SATA's power connector is much wider and has 15 pins that supply electricity to the drive, ground the cable, and support drive spinup.
Share this comparison:. If you read this far, you should follow us:. Diffen LLC, n. Advantages Inexpensive, large storage capacity. Data cable Narrow, can be up to a meter roughly 3ft long. Power and data split into two connections. Can be up to 10m 33ft long. The key attribute is serial interconnect. SSD refers to a type of internal technology. They are built from silicon memory chip with no moving parts and rotational delay, which reduces response time.
They deliver end-to-end data integrity and include a function like error correction to improve reliability. SAS is suitable for enterprise server storage. Using SAS Storage will reduce the risk or loss of data and overall reduces hosting- induced headache. SAS drives are used for Banking transactions and commerce high reliability. It meets the demands of today challenging environment. SSD is hard to erase and recover.
SSD equipped PC will boot in a few secs and transfers a file faster. They are becoming more widespread in high-end laptops like MAC. You may also have a look at the following articles to learn more. Submit Next Question. By signing up, you agree to our Terms of Use and Privacy Policy.
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