C691 - 3U VPX Unmanaged GbE and PCIe Switch

Aitech’s C691 is a high-performance 3U VPX integrated unmanaged Gigabit Ethernet and PCI Express Switch for embedded and harsh environment applications. Gigabit Ethernet switching is performed by the Marvell Prestera® 98DX106. The Ethernet switch is unmanaged and does not require any user configuration. PCIe switching of up to 20 ports / 24 lanes is performed by the IDT 89H32NT24AG2 Gen2 PCIe switch, which provides powerful switching capabilities and integrated DMA engines for fast data transfers between VPX cards. Flexible configuration options allow setting of different port/lane combinations and allocations for Transparent and Non-Transparent ports.



IP code rating


Number of ports


Type of switch


Product sheet




Founded in 1983, Aitech provides rugged commercial and military embedded computing solutions for a variety of high-profile defense, space and industrial programs across the globe.

Since introducing the world´s first conduction-cooled MIL-SPEC  VMEbus board more than three decades ago, the company has come a long way, continually broadened its range of SBCs, mezzanine cards, power supplies, enclosures and fully integrated harsh environment embedded systems.

Today, Aitech leads the development of advanced computing solutions for rugged systems with the latest innovations in GPGPU-based AI applications, cybersecurity for mission critical systems and small form factors for space environments.

As a pioneer in the industry, we have developed industry-leading commercially available off-the-shelf (COTS) products and capabilities.