SAS SFF-8470 is a multi-use connector spec that is used in the manufacture of (early) SAS Cables, Infiniband Cables, and now the CX4 spec (10GBASE-CX4).
Also known as IEEE 802.3ak, CX4 supports 10-Gigabit Ethernet data transfer over 4-lanes of copper cabling in each direction (8-lanes total).
For CX4 applications, the typical length limitation is 15m. However, with ‘active’ signal boosters, lengths beyond 15m are possible.
The SFF-8470 connector is a very robust connector, utilizing a die-cast outer shell, and is available in 3 ‘attachment’ styles:
SAS I/O & Drive Adapters
Please see the links below for more info: