Different Types of SATA Power Connectors in Use For Connecting Hard Drives

SATA stands for serial advanced technology attachment. It might seem like a mouthful, but SATA is actually a revolutionary connectivity standard that has been use since a long time. SATA interface was developed for connecting computer systems to peripheral devices such as optical disk drives and hard disks. There are different kinds of connectors such as micro SATA connectors, U.2 adapters to SATA, and many other variants, depending on the type of device and its age. Here are some commonly used SATA power connector variants:

Standard SATA Connector

It is the most commonly available SATA power connector variant, present in a majority of SATA interfaces. The number of pins have been varying depending on new and older models, with early connectors coming with both fifteen pins and four pin power adapter, whereas newer connectors come only with fifteen pins that also handle power along with data transfer.

Slim line Connector

It was introduced in SATA 2.6 revision line, and it was designed especially for compact computers such as laptops and notebooks. They usually come in 6 pins instead of the original 15 in standard connectors, and cost less than standard SATA connector cables and connection points. These are also used to connect hard drives in some laptop models.

Micro SATA Connector

Micro SATA connector is also called as u SATA, and is primarily used for hard drive connections. They are bigger than slim line connectors with 7-9 pins but smaller than regular SATA cable connectors. They are also slightly thinner, making them perfect for use in laptop to connect hard disks to the main motherboard without taking up much space. 

eSATA Connector

eSATA was introduced in 2004 that was specially designed for external connectivity. So far, almost all SATA connectors were designed to connect inner peripherals with the computer board, with no variant present for external use. eSATA was made to fill that gap, and is now used to connect external hard drives and external optical disk drives. The appearance is that of a slightly bigger USB port.

U.2 SATA Connector

U.2 SATA was developed sometime in 2010s, and was designed for modern solid state hard disks with data transfer speeds reaching up to 32 Gbits/sec. It is wider than compact SATA pins and cables, due to its increased speed of transfer. U.2 SATA cable adapters are also available as the connector allows backward compatibility with older SATA standard pins.

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