SFF-8639

sff-8639

SFF-8639 (now called ‘U.2’)

 

The SFF-8639 is the latest connector design for interfacing a connection to a either a MultiLink SAS drive or a PCIe drive – both Hard drives and SSD drives. It was recently re-named by the SSD Small Form Factor Working Group as ‘U.2’.

The SFF-8639 is a revision of the SFF-8680, which is a 29-pin 2-Lane SAS drive interface. The SFF-8639 U.2 is a 68-pin drive interface connector which has higher signal qualities to support 12Gb/s SAS and Gen 3 x4 PCIe, or PCI Express NVMe.

The SFF-8639/U.2 connector can be incorporated onto a pcb “docking backplane” for multiple drives, or onto a single-drive “T-Card” adapters such as CS Electronics’ ADP-4439, ADP-43V39, and the new 2.5″ PCIe NVMe SSD Cable adapter kit – ADP-PCIe-43V39.

The SFF-8639 U.2 connector has a total of 6 High-Speed signal paths, however both the SAS and PCIe specifications only ever use up to 4 lanes at any time.

It is compliant with the latest 12Gb/s SAS 3.0 spec as well as x4 Gen3 PCIe and SSD Form Factor V 1.0.

Related Products:
ADP-4439
ADP-43V39
ADP-4480-12
ADP-4380-12
ADP-8780

Connector types:
SFF-8644
SFF-8643
SFF-8680
SFF-8088
SFF-8087
SFF-8482
SFF-8484
SFF-8431
SFF-8436
SFF-8470

12Gb/s SAS 3.0 Overview-

Call for Dealer/Volume Pricing