Managed Layer 2 Gigabit Ethernet Switch
(4) 10/100/1000Base-T Ports + (4) 100/1000Base-X SFP Slots

This switch is a high performance Layer 2 managed switch with (4) 10/100/1000Base-T copper ports and (4) dual speed 100/1000Base-X SFP slots.

NDAA Compliant

SM4T4DPA Overview


  • Supports Jumbo Frame up to 9K bytes
  • Authentication – RADIUS IEEE 802.1X, TACACS+
  • Security – Supports SSH/SSL
  • Port based or tagged (IEEE 802.1Q) VLAN, QinQ double tag VLAN, Guest VLAN
  • Bandwidth Allocation Ingress and Egress
  • DHCP Snooping including option 82
  • IP-MAC binding for security
  • ACL based on Ethernet Type / ARP / IPv4 for packets permit or deny, ratelimitation and port copy
  • LLDP (Link Layer Discovery Protocol)
  • SYSLOG for device management
  • IEEE 802.3az Energy Efficiency
  • Single IP management
  • Web Management, SNMP V1/V2c/V3, Telnet, CLI
  • Supports IEEE 802.3ad port trunk with link aggregation control protocol (LACP)
  • Support IGMP Snooping V1/V2/V3, IGMP Proxy and GVRP
  • Supports 8 hardware queues with Strict priority and WRR. Per port bandwidth management
  • Supports IEEE 802.1s MSTP, IEEE 802.1w RSTP and IEEE 802.1D STP Compliant
  • Port Based VLAN, IEEE 802.1Q tag based, 4096 VLAN entries, MAC-based VLAN, Private VLAN Edge, Priority VLAN override
  • Firmware Update, configure backup/ restore through Web GUI and TFTP
  • Support IPv4/IPv6 dual protocol stack
  • Redundant Ring Protection Protocol

SM4T4DPA Tech Specs


  • IEEE 802.3
  • IEEE 802.3u
  • IEEE 802.3z
  • IEEE 802.3x
  • IEEE 802.3ad
  • IEEE 802.1D
  • IEEE 802.1w
  • IEEE 802.1X
  • IEEE 802.1s
  • IEEE 802.1Q
  • IEEE 802.1p
  • IEEE 802.1ad
  • IEEE 802.1AB
  • IEEE 802.3az


  • (1) RJ-45 console port
  • (4) 10/100/1000 RJ-45 ports
  • (4) 100/1000 SFP slots




  • Store-and-Forward switching architecture

MAC Address

  • 8K MAC address table


  • 16 Gbps


  • Width: 8.66” [220 mm]
  • Depth: 6.26” [159 mm]
  • Height: 1.69” [44 mm]

Power Input

  • Internal power: 100-240VAC


  • Operating: 0°C to 40°C
  • Humidity: 5% to 90% (non-condensing)


  • 3.85 lbs. [1.75 kg]


  • Safety: LVD
  • Emissions: FCC Class A, CE


  • 5 Years

SM4T4DPA Downloads

Additional Product Information

Note: Some Documentation may have Transition Networks named or pictured. Transition Networks was acquired by Lantronix in August 2021. Learn more about the acquisition here.

Visio Stencils

Plan your network with Microsoft Visio Stencils. You must log in or create a MyLantronix account to access Visio Stencils.

Firmware Downloads

Keep your products up to date by downloading the latest firmware. You must log in or create a MyLantronix account to download firmware. 

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(4) 10/100/1000Base-T ports + (4) 100/1000Base-X SFP slots

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