"VSC8258 is a quad 1G/10G serial-to-serial Ethernet PHY featuring IEEE 1588v2 and 128/256-bit MACsec encryption. It also supports dual-sided 10GBASE-KR functionality including auto-negotiation and training in a small form factor, low-power FCBGA ideal for a wide array of board-level signal integrity designs and system-level IEEE standard compliant (intelligent) Ethernet connectivity.VeriTime™ is Microsemi’s patent-pending timing technology that delivers the industry’s most accurate IEEE 1588v2 timing implementation. It is the only IEEE 1588v2 solution to be validated by major OEMs in real-world tests and adopted as the preferred low-cost upgrade for meeting emerging requirements in 4G/LTE-Advanced (LTE-A).Intellisec™ is Microsemi’s patent-pending flow-based extension of the IEEE 802.1AE-based, end-to-end MACsec solution for confidential communications over any MEF CE 2.0 Ethernet or MPLS service provider connections. It is the world’s first FIPS 197-certified CGM-AES 256-bit strong MACsec, with legacy support for today's CGM-AES 128-bit field deployments. The VSC8258 device supports full line rate encryption at both 1 GbE and 10 GbE speeds over multiple media types."