Joined in 2023 
82 
63 About this deal
Mini Multilane 4/8X Unshielded Connector (HDun), Rev 3.5". Archived from the original on June 6, 2021.
a b "24G SAS Data Storage Specification Development Complete; SCSI Trade Association Spotlights Technology at 2017 Flash Memory Summit". SCSI Trade Association. 2017-08-07.This connector is the standard SAS hard drive connector which is compatible with SAS and SATA drives. It provides both data and power to drives through one connector, instead of the standard seven pin data plus SATA power connector found in most consumer applications. In many instances, the SFF-8482 connector has a data cable branching off of a four port cable with a four-pin molex power connector feeding the SFF-8482 connector. SAS connectors are much smaller than traditional parallel SCSI connectors. Commonly, SAS provides for point data transfer speeds up to 12Gbit/s. [17] The SFF-8644 connector type is not the most common out there which makes it quite expensive. As one can see the cables have two pieces of PCB so instead of a single cable run, the cable must be split into two, one lead going to each PCB. This clearly adds cost as they are not straight through connectors terming to one end point. Personally I utilize a few SFF-8644 to SFF-8088 connectors in the lab. Conclusion
SAS error-recovery and error-reporting uses SCSI commands, which have more functionality than the ATA SMART commands used by SATA drives. [11] SAS-1.1 topologies built with expanders generally contain one root node in a SAS domain with the one exception case being topologies that contain two expanders connected via a subtractive-to-subtractive port. If it exists, the root node is the expander, which is not connected to another expander via a subtractive port. Therefore, if a fanout expander exists in the configuration, it must be the domain's root node. The root node contains routes for all end devices connected to the domain. Note that with the advent in SAS-2.0 of table-to-table routing and new rules for end-to-end zoning, more complex topologies built upon SAS-2.0 rules do not contain a single root node. SAS 1 defined two types of expander; however, the SAS-2.0 standard has dropped the distinction between the two, as it created unnecessary topological limitations with no realized benefit: SATA is marketed as a general-purpose successor to parallel ATA and has become [update] common in the consumer market, whereas the more-expensive SAS targets critical server applications.
Infiniband, what can it not do? For those that do not know Infiniband, it is more or less a high-performance computing fabric developed to achieve high bandwidth and low latencies. CX4 cabling is used with a SFF-8470 connector to provide a high-performance SAS interconnect. Most newer generation SAS cards have since adopted the SFF-8088 connector, but some legacy products can still be found with the SFF-8470 connector. Interestingly enough, the CX4/ SFF-8470 connectors are also used on cards that provide high-speed data transmission between servers, making Infiniband not an exclusively storage related connector. SFP+ 10 Gb/s and Low Speed Electrical Interface, Rev 4.1". Archived from the original on June 6, 2021. a b c Willis Whittington (2007). "Desktop, Nearline & Enterprise Disk Drives" (PDF). Storage Networking Industry Association (SNIA) . Retrieved 2014-09-22.
Great Deal 
New Comment