SAS Connector: What You Need to Know

SAS Connector

SAS Connector provides connectivity between Cloud Data Integration and SAS. When connecting from Data Integration to SAS, you can use SAS Connector. If you want to learn more about this connector, this post is right for you.

The SAS port is developed for data transfer between storage units and / or floppy disk drives. To explain it more simply, we could say that it is SATA port with added power. The primary distinction is that a SAS connector can accommodate multiple hard drives at once.

Keep reading and find out more about SAS connector development, features and more.

SAS Connector Development

Any open and standard development is required for any current connection port. Most frequently, associations supported by major industry players develop the connection ports. The goal is to create a universally applicable single connection system that will be simple to implement and market.

This is also true of SAS. In 1996 the SCSI Trade Association is created1 in order to create a high speed connection port. The association in December 2001 Introduces SAS Port Requirements and Specifications and initiates the promotion of this technology in the industry.

SAS Connector

Subsequently, in May 2002 the parameters of this port are transferred to the Technical Committee T10 for its standardization. Serial Attached SCSI (SAS) was a standard that was released by ANSI in November 2003. Beginning in 2004, the first devices utilizing this standard started to appear.

The participation of the sector’s companies falls into one of three categories. Depending on the level of participation, these companies have a variety of rights and advantages. Additionally, they work together by providing financial support for development in exchange for an annual fee that ranges between $4.000 and $25.000.

The most prominent members are:

  • Sponsored by: Adaptec, Hewlett-Packard, Intel, LSI Logic, Maxtor, Seagate
  • Main: Fujitsu, Hitachi, IBM, Western Digital
  • Promotion: Dell, NEC, Texas Instruments

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SAS Parts


It is the source element’s responsibility to manage tasks for target devices to complete and device service requests. It also receives responses from other target devices in response to those requests. The initiators can be offered as a motherboard integrated component or as an additional host bus adapter.


device that receives job requests and has destination ports and logical drives. It handles request processing and sends the requested responses back to the initiating devices. A storage drive or a group of storage drives could be the target drive.

Service Delivery Subsystem

a component of an information-transmission system between an initiator and a target. A service delivery subsystem is typically made up of cables that connect an initiator and target, with or without expanders and backplates.


a piece of equipment that helps SAS devices communicate and is a part of a service delivery subsystem. These expanders make it easy to connect multiple end devices to a single initiator port

SAS Port Features

With this type of connection, the fastest possible transfer speed between devices is desired. The fact that the data transfer interface is carried out in series gives it a significant advantage over other types of connectors. This connection type is primarily used in servers, where high performance is necessary and there are frequently many storage units.

There are specialized storage units with cutting-edge features for this type of connection. It was initially used in special mechanical hard drives that supported between 10.000RPM and 15.000RPM, or what is the same, almost twice the speed of rotation of a commercial hard disk.

Moving away from mechanical hard drives and toward solid state drives, the market is currently starting to phase them out. These are significantly more effective and are better able to take advantage of the SAS ports’ performance. Currently, this port can transfer data at up to 22.5GB per second.

The SAS ports’ ability to support hot drive installation and removal is another advantage. Simply inserting or removing a hard drive is all that is required in this scenario, as the system need not be shut down. At the moment, SATA ports also provide this option.

It should be noted that while SAS ports can accept SATA hard drives, the reverse is not true. This is so because the SAS port and the SATA port are so similar. The connector on the storage drive is typically the same, despite slight variations in the ports on the motherboard or expansion boards.

Technical Aspects of the SAS Port

This port was created to offer a high data transfer, as we have mentioned. Additionally, because of its high flexibility, it makes the development of expansive storage systems simple.

The ability of these ports to directly communicate with one another is a huge benefit for data management. In order to avoid communication conflicts, the system generates a singular, global number. In addition, in multiple connections it has the ability to maintain a constant transfer for each device

Each SAS port supports up to 16 drives, something that does not happen in the SATA ports that can only accommodate one drive. Each tSAS card has a capacity limit of 128 drives and theoretical limit in a system is 65.535 units through expanders.

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SAS Connector Vs SATA: What Are Differences?

SAS is optimal for use in servers and workstations because it has a more versatile array of connectors and is faster at reading and writing data in a continuous computer session. SATA is better for storage purposes because it can write data very quickly, and the hardware is budget-friendly for small businesses.

What Are SAS Connector Types?

There are two types of SAS connectors, mini SAS and mini SAS high density (HD). 6 Gb/s SAS typically requires high-density cables. Each SAS cable has four SAS physical links, which are typically arranged into either a single 4x SAS port or two 2x SAS ports.