VX3920 Not recommended for new designs

High End L2/L3 OpenVPX 10G/40G Ethernet Switch
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  • L2/L3 non blocking 10G/40G switch
  • 3U Open VPX, MOD3-SWH-2F24U module
  • Air-cooled - Backplane: 22x 10GBase-KR, 1x 10/100/1000Base-T user configurable front panel or backplane. Front Panel: 2x 10G SFP+
  • Conduction-cooled - Backplane: 24x 10GBase-KR or 6x 40GBase-KR4 or, 22x 10GBase-KR + 1x 10/100/1000Base-T
  • Front Panel (air-cooled only): 2x SFP+, 2x RJ45, 1x RJ11 (serial)
  • Supports: VLAN, Link Aggregation, Spanning Tree
  • QoS, Flow Control
  • GRVP, GMRP Function managed, Port Mirroring
  • Out of Band Management
  • 5V only design, 45W maximum

VX3920 provides up-to 24 10 Gigabit Ethernet ports and comprehensive management features for extremely rugged 3U system designs. It implements Kontron Embedded Network Technology (same advanced feature set and operational interfaces across multiple form factors) which simplifies IPv4/v6 inter-and intra-platform networking.

Offering a switching capacity of 320Gb/s the non-blocking fully managed L2/L3 Gigabit Switch provides 24 x 10 G BaseKR ports to the backplane. Two 10 Gigabit ports are also available on the front panel through SFP+ ports, two RJ45 GETH and one RJ11 serial line ports. One GETH and the serial line port can be used for out-of-band management.

VX3920 is currenly available in an air-cooled version (0°C to +55°C) and conduction-cooled version (-40°C to + 85°C).


Ports OpenVPX 3U Switch slot profile: SLT3-SWH-2F24U-14.4.3
Up to 24x 10 GETH backplane ports, or 6x 40 GETH ports.
Ports Port ordering option:
X x22 10GBASE-KR ports on rear, x1 10/100/1000BASE-T port rear or front, x2 SFP+ on front
X x24 10GBASE-KR ports on rear, x1 10/100/1000BASE-T to backplane, no SFP+ on front
X RTM (Rear Transition Module) SFP+ port operates in 10GBASE-SR/LR/CR
X QSFP+ port operates in 4x 10GBASE-SR/LR/CR or 40GBASE-SR4/LR4/CR4
X RTM RJ-45 10/100/1000BASE-T port is shared with the Front RJ-45
One 10/100/1000BASE-T out-of-band management port on front panel (RJ-45)
1 RJ-12 serial link
Power Consumption 50 Watts
Operation Temperature 0°C to +55°C Air-Cooled; -40° to +85°C Conduction-Cooled



VX3920 3U VPX 10G ETH L2/L3 Switch Data Sheet
[ vx3920-datasheet-06-2017.pdf, 1.01 MB, Aug.31.2017 ]

VME-VPX shortform catalog
[ shortform-vme-vpx.pdf, 1.36 MB, Jun.18.2024 ]


VX3920 User Manual [restrictions apply]
User Guide to VX3920 High End L2/L3 OpenVPX 10G Switch, including supported MIBs and RFCs.
[ vx3920-user-guide-v1-04.pdf, 1.74 MB, Jul.03.2018 ]

VX3920 CLI Reference Manual [restrictions apply]
VX3920 Command line interface (CLI) to the FASTPATH software
[ vx3920-cli-reference-manual-v1-6.pdf, 5.59 MB, Apr.20.2023 ]

VX3920 Errata Sheet [restrictions apply]
Errata for Kontron VX3920 Ethernet Switch For SW BETA Release 1.00 and for all SW GA releases
[ vx3920-errata-v1-01.pdf, 91.58 KB, Apr.20.2023 ]

General Safety Instruction
[ general-safety-instructions.pdf, 560.72 KB, Jan.04.2021 ]

White Papers

Managing 3rd gen High Data Rates on VPX Backplanes
This white paper describes the key parameters that must be mastered to achieve high data rates on VPX architectures. It explains some of the technologies used by Kontron to operate VPX computers at top bandwidth (eg PCIe gen3, 10G/40G Base KR)
[ whitepaper_vpx_highdatarates.pdf, 3.49 MB, Apr.21.2017 ]


Kontron Modular Computers S.A.S. Service and Support Offering
This data sheet contains a detailed description of all the support and service offering from Kontron Modular Computers S.A.S, including the Long Term Supply (LTS) Services.
[ support-brochure-03-2018.pdf, 894.71 KB, Jun.28.2018 ]

More Downloads

All other downloads such as drivers, bios, drawings etc. are available on Kontron’s Customer Section


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