This week, the brand new revision 2.1 of our syn1588® PCIe NIC arrived! Beside the well known high-performance, high-accuracy features we added the new exciting functions. It is now optionally possible to drive the syn1588® hardware clock with an external clock signal. For all users that require internal connectivity we improved our internal SMA connectors. Starting with this board revision one will observe a new IEEE OUI for the Ethernet address.