Use the high speed I/O connectivity of Intel Thunderbolt to connect to multiple PCIe 2.0 cards through one port. With the proper PCI Express adapter for Thunderbolt, its possible to add non-OEM functionality to Mac and (soon) PC computers. Being based on the PCIe protocol, the Thunderbolt port is excellent for connecting such devices to Mac OSX and delivering full functionality. The Thunderbolt interface has the capacity to carry 4 PCIe data streams in one conventional copper wire. Adding a PCI Thunderbolt express card reader to a Mac can easily upgrade it's versatility for connecting to computer peripherals.
The Sonnet PCIe 2.0 adapter for Thunderbolt is the first Thunderbolt expansion peripherals to hit the market. Offering a single PCI Express bus interface, it allows any Mac user with Thunderbolt to connect compatible ExpressCard/34 adapters to add additional interfaces to their computers. Currently it mostly offers support for ExpressCard/34 adapters manufactured by Sonnet, but its connectivity has been increasing as drivers are developed. With the proper PCIe adapter the device grants Mac users the opportunity to use the Sonnet Echo ExpressCard/34 as a Thunderbolt FireWire adapter, or to connect high capacity memory cards such as SDXC or Compact Flash, as well as some high end audio/video devices (such as AJA) and even eSATA.
Sonnet Echo Express PCIe 2.0 Expansion Chassis for Thunderbolt
The Echo Express Thunderbolt PCIe 2.0 Chassis is ideal for connecting PCI Express adapters to Thunderbolt computers. Use the standard version to connect to half length (double width) x16 PCIe 2.0 cards, and the XL model to support full length. Its constructed with a durable aluminum enclosure and features a fan for cooling for the PCIe adapter card. The Echo Express PCIe 2.0 expansion chassis for Thunderbolt permits connection to special purpose PCIe 2.0 adapters like 8Gb Fibre Channel adapters, 10Gb Ethernet cards, RAID control, and video capturing devices. Both models provide 75W power connection for PCIe cards via a plug-in power supply. It includes two Thunderbolt ports for daisy-chain multiple Thunderbolt devices along with an HD monitor. Add PCI Express adapter cards to any Thunderbolt computer without sacrificing performance or I/O.