MetaMux 48E

48 Port low-latency switch and FPGA platform

MetaMux 48E is a hybrid multi-layer switch designed for the most latency critical networks such as trading environments.

It is multiple switches in one – performing layer 1 switching in only 5 ns and multiplexing/aggregation in 55 ns, making it extremely useful for connecting trading machines directly to exchanges.

MetaMux is built on the same foundation as MetaConnect, so its layer 1 features include dynamic patching, tapping, one-to-many replication, media conversion, packet stats and precise timestamping. That means that the delay on downstream packets is barely detectable.


When using aggregation, packets can be multiplexed from many to one in 55 ns assuming no congestion, otherwise the packets are queued. That is a fraction of the latency and much more deterministic, compared with the best conventional switches. 

For the measured latency performance of MetaMux on the M48E, click here.


Why use MetaMux?

  • Super fast multiplexing (many to one) with half the latency of the best conventional switches:
    • Order entry switch with 55 ns latency (assuming no congestion);
  • Layer 1 performance of MetaConnect:
    • Suitable for latency critical paths with 5 ns latency port to port;
    • Reconfigurable without rewiring - use as a patch panel or kill switch/circuit breaker;
    • Broadcasts one to many in 5 ns;
    • Ad-hoc tapping without rewiring;
    • Precise timestamping of packets;
    • Cost savings through the use of less expensive SFP+ and network media - e.g. convert fibre to copper;

Features and Benefits

Fast multiplexing Aggregate streams from multiple sources into a single stream for hand-off to exchanges, microwave links, or WAN links. Also configurable as multiple many-to-one multiplexers.
Integrated layer 1 switching Patching, media conversion, tapping replication and packet statistics. Wire-once to reduce visits to the data center. Use Layer 1 broadcast to implement a return path with a latency of just 5 ns and virtually no jitter.
Deterministic Replaces taps to monitor or share feeds such as market-data with full regeneration and no additional overhead.
Flexible SFP/SFP+ support Allows the use of less expensive modules, including direct attached copper cables, that are boosted by MetaMux's high performance signal recovery and regeneration.
Protocol flexibility Protocol agnostic at layer 1 while layer 2 packet features support 1GbE and 10GbE with 100M. 100M Ethernet and rate conversion are planned for a future software release.

Packet statistics 

Advanced monitoring. Captures high-level packet statistics across all ports. Supports detailed switch statistics via SNMP or CLI. Provides tcpdump and LLDP on every port. 

FPGA Development 

Flexible platform with all 48 ports connected to the onboard Xilinx® Ultrascale or Ultrascale+ FPGA(s) for custom applications

x86-64 Linux management 

Uses open standards platform and MOS operating software to provide user extensible solutions.


Layer 1
  • 5 ns latency with virtually no jitter
  • Non-blocking matrix switching fabric
  • SFP/SFP+ ports from 100M-11.3Gbps
  • Bit-for-bit forwarding for any protocol
  • Unlimited port-to-port mirroring with regeneration
  • Multiple independent links through the device are supported at different
  • High performance signal recovery, regeneration and conditioning (EDC on input,
    CDR on input and output)

  • Integrated, 160-port, layer 1 switch connects front panel ports, multiplexing module and management platform
  • Configurable as multiple many-to-one multiplexers
  • Packet statistics without affecting the 5 ns layer 1 performance
  • Precise packet timestamping
  • Packet capture
  • Filtering (future software release)

Cable Compatibility
  • Compatible with SR, LR, ZR and LRM SFP/SFP+ modules and
    direct attach cables
  • Drive any MSA compliant SFP/SFP+ module
  • Works with long list of third-party SFP/SFP+ modules (see FAQ)
  • 100M,1GbE, 10GbE and many others

Redundancy & Data Center
  • 1 rack unit (1RU)
  • Dual redundant, hot-swappable power supplies (DS460S)
  • Dual redundant, hot-swappable fans
  • Fan and power supply replacement kits are available
  • Front-to-back or back-to-front air flow

  • Packet statistics captured on every port (valid packets, invalid packets, link state)
  • Eye diagram for monitoring and troubleshooting signal quality
  • Front panel LEDs for port activity and status
  • Ports can be “sniffed” via the management system
  • Precise timestamping without additional latency (via port tapping - see use cases
    for more details) or on egress port at approximately 300ns for non-latency critical paths
  • Fully managed SFP+ interface diagnostics including light levels, temperature and voltages

Management Platform
  • Quad-core, hyperthreaded x86-64 CPU
  • 4GB RAM, on-board SSD
  • Industry standard command line interface (serial/SSH/telnet)
  • Web-based GUI
  • Linux based (shells, scripting, Python, RPMs etc.)
  • Binary compatibility with other x86-64 based Linux systems
  • Firmware restore and update via USB, serial and network
  • A future software release will provide a switch subsystem API and allow user applications to run in a VM

management Protocols
  • HTTP/S, SSH, telnet
  • Serial console
  • PTP, NTP
  • SNMP v1, v2, v3
  • DHCP
  • Network boot via TFTP*
  • Local and remote syslog
  • RADIUS and TACAS+ authentication

*Available in a future software release

operating environment
  • Temperature: 0°C to 40°C
  • Humidity: 10% to 85%, non-condensing
  • Maximum altitude: 3000m (9800ft)

physical and electrical
  • Dimensions (h x w x d): 4.3 x 44.8 x 37.9cm (1.7 x 17.6 x 14.9in)
  • Weight: ~8kg (17.6lbs), depending on configuration
  • Maximum power: 290W
  • AC voltage range: 100-240V, AC frequency: 50/60Hz
  • DC voltage range: 40-72V

Front View


Rear View


ultra low-latency switch and FPGA platform