SAS also known as Serial Attached SCSI, is a new generation of SCSI technology that, like the popular Serial ATA (SATA) hard drives, uses serial technology to achieve higher transmission speeds and improves internal space by shortening connection lines. SAS is a brand new interface developed after parallel SCSI interfaces.
The SAS interface is designed to improve the performance, availability, and scalability of the storage system, as well as provide compatibility with SATA hard drives.
SFF-8643: Internal Mini SAS HD 4i/8i
SFF-8643 is the latest HD MiniSAS connector design used to implement HD SAS internal interconnect solutions.
SFF-8643 is a 36 pin “high-density SAS” connector that uses a plastic body commonly used for internal connections. A typical application is the INTERNAL SAS link SFF-8643 between SAS HBA and SAS drive, which complies with the latest SAS 3.0 specifications and supports the 12Gb/s data transfer protocol SFF-8643. The HD MiniSAS external corresponding product is SFF-8644, which is also compatible with SAS 3.0 and also supports the 12Gb/s SAS data transfer speed.
Both SFF-8643 and SFF-8644 can support up to 4 ports (4 channels) of SAS data.
SFF-8644: External Mini SAS HD 4x/8x
SFF-8644 is the latest HD MiniSAS connector design used to implement HD SAS external interconnect solutions.
SFF-8644 is a 36 pin “high-density SAS” connector with a metal casing compatible with shielded external connections. A typical application is the SAS link between SAS HBA and SAS drive subsystem.
SFF-8644 complies with the latest SAS 3.0 specifications and supports 12Gb/s data transmission protocol.
The internal corresponding product of HD MiniSAS for SFF-8644 is SFF-8643, which is also compatible with SAS 3.0 and supports 12Gb/s SAS data transfer speed.
Both SFF-8644 and SFF-8643 can support up to 4 ports (4 channels) of SAS data.
SFF-8087: Internal Mini SAS 4i
The SFF-8087 Mini SAS connector is designed specifically for implementing Mini SAS internal interconnect solutions.
SFF-8087 is a 36 pin “Mini SAS” connector with a plastic locking interface compatible with internal connections. A typical application is the SAS link between SAS HBA and SAS drive subsystem.
SFF-8087 complies with the latest 6Gb/s Mini-SAS 2.0 specification and supports the 6Gb/s data transfer protocol. The Mini-SAS external corresponding product of SFF-8087 is SFF-8088, which is also compatible with Mini-SAS 2.0 and also supports 6Gb/s SAS data transfer speed.
Both SFF-8087 and SFF-8088 can support up to 4 ports (4 channels) of SAS data.
SFF-8088: External Mini SAS 4x
The SFF-8088 Mini SAS connector is designed specifically for implementing Mini SAS external interconnect solutions.
SFF-8088 is a 26 pin “Mini SAS connector with a metal casing compatible with shielded external connections. Typical applications are SAS HBA and S
The SAS link SFF-8088 between AS drive subsystems complies with the latest 6Gb/s Mini-SAS 2.0 specification. The Mini-SAS internal corresponding product that supports the 6Gb/s data transfer protocol SFF-8088 is SFF-8087, which is also compatible with Mini-SAS 2.0 and also supports 6Gb/s SAS data transfer speed.
Both SFF-8088 and SFF-8087 can support up to 4 ports (4 channels) of SAS data.
SFF-8639
SFF-8639 is the latest connector design for connecting MultiLink SAS drives or PCle drives (including hard drives and SSD drives).
SFF-8639 is a revised version of SFF-8680, which is a 29 pin 2-channel SAS drive interface. SFF-8639 U.2 is a 68 pin driver interface connector with higher signal quality, capable of supporting 12Gb/s SAS and Gen 3 x4 PCle or PCI Express NVMe. The SFF-8639 connector can be integrated into the PCB “docking backplane” of multiple drives or into a single drive “T-Card” adapter.
The SFF-8639 U2 connector has a total of 6 high-speed signal paths, but SAS and PCle specifications can only use up to 4 channels at any time.
It complies with the latest 12Gb/s SAS 3.0 specifications, as well as x4 Gen3 PCle and SSD Form Factor V 1.0.
SFF-8482
SFF-8482 is a connector design used to connect SAS drives, SAS hard drives, and SAS SSD drives. SFF-8482 is a 29 pin connector with a plastic body and is configured with 15 pins to support the power requirements of the drive; (2) 7 sets of pins are used to transmit SAS data signals.
SFF-8482 supports the connection between 2 SAS ports (channels) and drives. SFF-8482 can be integrated into the PCB “docking” backplane of multiple drives and installed on a single drive “T-Card” adapter.
