ExaNIC X10


Exablaze's ExaNIC X10 is an ultra low latency network interface card which delivers the lowest latency in the industry: 780ns application to application for small Ethernet frames (using the native API) and under a microsecond for small TCP and UDP payloads (using the transparent socket acceleration library).

The ExaNIC X10 also has built in bridging functionality which allows it to function as a miniature switch, avoiding the extra latency of a switch in some common use cases. Additionally, with hardware–based time stamping of every packet to 6 nanoseconds resolution, users can rethink their approach to measurement and latency management.

The card features an SMA connector which can accept a PPS in or drive PPS out to further improve the accuracy of timestamps taken throughout the system.

The second port can be configured to mirror a copy of all traffic coming into port 1, and/or all traffic leaving port 1 (as well as operating as a normal port itself). Additionally, bridging mode allows packets to pass quickly between the 2 ports via the FPGA (i.e. without involving the host).

Typical latency, raw frames:
60 bytes: 780ns
300 bytes: 1μs
Typical latency, raw frames with pre-loaded TX buffer:
60 bytes: 710ns
300 bytes: 930ns
Typical latency, UDP:
14 bytes: 880ns
300 bytes: 1.2μs
Typical latency, TCP:
14 bytes: 930ns
300 bytes: 1.2μs
Form factor:
Half-height PCI Express card
2 SFP+, PPS in/out
Data rate:
10 Gigabit Ethernet, 1 Gigabit Ethernet, 100M Ethernet
Supported media:
Fiber (10GBASE-SR, 10GBASE-LR, 1000BASE-SX, 1000BASE-LX), SFP+ Direct Attach
Host interface:
PCIe x8 Gen 3.0 @ 8.0 GT/s per lane
Operating system:
Linux (any distribution)
Timestamp resolution:
Timestamp availability:
all received frames, most recent transmitted frame
Time synchronization:
Host, PTP, optional PPS
PPS input/output:
Port 1 RX and port 1 TX can optionally be mirrored out port 2
Optional forwarding between ports 1 and 2
Flow steering and flow hashing
128 IP rules per port, 64 MAC rules per port
Purchase includes 1 year support and warranty, extended options available
*Sub microsecond TCP half round-trip time using the exasock transparent kernel acceleration library - see performance section. Test methodology available on request.