External SATA (eSATA) applications range from a single disk external drive to multi-disk
external storage/backup with RAID/Port multiplier features. New generation Set top box (STB)
and motherboard (MB) product releases have also added eSATA connectors. The market
demand for eSATA external storage is on the rise.
eSATA components must address the following issues:
1. Prevent ESD (Electro-static Discharge) damage during connector plugging.
2. Comply with EMI (Electro-magnetic Interference) limits per FCC and CE regulations.
3. Withstand the more frequent insert/removal cycles (called durability) by the users.
The selection and implementation of eSATA connectors and cables during the design phase
is critical. It is essential to consider both the eSATA connector and cable. The products
themselves must meet SATA-IO specified requirements. Such products provide the highest
degree of interoperability and ease of implementation through compliance with mechanical
tolerance, mated impedance, and cable connector shielding. Products supplied by companies
who are members of SATA I/O and have been involved with the design and verification of the
standard are excellent choices.
What are the differences of eSATA connectors versus SATA internal connectors?
1. The External connector has no “L” shaped key.
eSATA connectors Standard internal SATA connectors
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