SATA Connector
The SATA connector was designed from inception to address these challenges and to provide a superior solution for storage
systems and applications.The connector has been designed to work in both cabled and backplane environments. Features in
the connector provide blind-mate capability as well as hot-plug support. In addition, the SATA connector provides two "bays,"
one for power and a separate bay for data signals.
In Figure 1, notice the different contact lengths on the HDD SATA connector. When it is inserted into a SATA host system (which
has a different configuration of contact lengths), three levels of connection between the HDD and host system are enabled.
This feature, along with additional Maxtor circuitry, enables SATA Hot-plug, which solves the challenges of easily accessing,
servicing and scaling SATA-based storage systems.
Using Figure 2 as a reference, when an HDD is inserted into a host system slot the following connections are made between the
HDD and host system:
1. The longest contacts on each connector mate first (blue). These ground contacts provide the necessary connection to
avoid ESD and ensure that there is no voltage difference between the HDD and host system ground.
2. The longest host connector contacts mate with the short HDD contacts next (gray). All remaining ground contacts
are connected as well as power supply "pre-charge" contacts. These contacts, along with Maxtor’s "anti-spike" current limiting
circuits, slow the initial in-rush of current that would normally be induced during a hot-plugging operation.
3. The shortest contacts on each connector mate last (green). All remaining power supply contacts are connected as
well as the data signal contacts. The connector mating process is complete and communication is safely established between
the HDD and host system.
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