Is this a Layer 3 switch?

Yes, the Summit X440-48t is a Layer 3 managed switch with advanced routing, QoS, IPv4 LPM (32 entries), 256 Layer 3 interfaces, and hardware-based IP support. It supports 4,094 VLANs and 1,024 ingress ACLs for sophisticated network segmentation.

What is the form factor and power setup?

Rack-mountable 1U chassis (1.73" H x 17.4" W x 10.0" D) with fixed internal AC power supply and optional redundant PSU connector. Weight is approximately 9.1 lb, ideal for standard 19-inch racks in enterprise environments.

What performance specs does it offer?

136 Gbps non-blocking switching capacity, 101 Mpps throughput, <5 µs latency (64-byte), 9KB jumbo frames, and 16K MAC addresses. QoS includes 8 queues/port and 1,024 ingress meters at 8 Kbps granularity.

Powered by ExtremeXOS OS with SNMP support, serial console (RJ45), OOB Ethernet management port, and Universal Port provisioning. Supports 512MB ECC DRAM and 500 MHz CPU for reliable operations.

What are the key Layer 3 capabilities?

Includes IPv4 host addresses (509), IPv6 host (256), IP multicast groups (64), and advanced traffic management. Enables trunks (128 with 8 members) and comprehensive forwarding tables for enterprise routing.

16505 - Extreme Networks X440-48t 48 x RJ-45 10/100/1000Base-T; 4 x Combo SFP Ports Switch

Name: 16505 - Extreme Networks X440-48t 48 x RJ-45 10/100/1000Base-T; 4 x Combo SFP Ports Switch
Brand: Extreme Networks
SKU: 16505
Price: 398 USD
Availability: InStock

16505 - Extreme Networks X440-48t 48 x RJ-45 10/100/1000Base-T; 4 x Combo SFP Ports Switch | US IT Hardware

Product overview

The Extreme Networks Summit X440-48t (SKU 16505) is a Layer 3 managed Gigabit Ethernet switch from the Summit X440 Series, designed for enterprise access layer deployments. It features 48 x 10/100/1000BASE-T RJ45 ports for high-density copper connectivity and 4 x combo 100/1000BASE-X SFP ports for flexible fiber or copper uplinks. The rack-mountable 1U chassis supports non-blocking 136 Gbps switching capacity and 101 Mpps forwarding rate with low latency under 5 µs. Powered by ExtremeXOS operating system with SNMP support, it offers advanced routing, QoS, 4,094 VLANs, 16K MAC addresses, and 1,024 ingress ACLs. Fixed internal AC power supply ensures reliability. Ideal for extending intelligent Gigabit connectivity to desktops, servers, and aggregation in SMB or branch offices. Supports SummitStack for stacking and includes serial console and out-of-band management ports for comprehensive network control.

48x 1GbE RJ45 + 4x SFP combo ports for dense access
136 Gbps capacity, <5 µs latency, 101 Mpps forwarding
Layer 3 routing, 4K VLANs, ExtremeXOS management
1U rack-mount with fixed internal power supply
16K MAC, 1K ACLs, 8 QoS queues per port
Gigabit Ethernet with jumbo frame support up to 9KB

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	16505
Brand	Extreme Networks
Condition	Refurbished
Model	X440-48t
Product Line	Summit X440 Series
Product Type	Layer 3 Managed Gigabit Ethernet Switch
Ethernet Speed	Gigabit Ethernet 10/100/1000Base-T
Switching Type	Layer 3 Managed with advanced routing and QoS
Management Interface	ExtremeXOS with SNMP support

Storage

DRAM

Compatible systems

No specific compatibility lists found in sources

Best for

Enterprise Access
Provides 48 x 1GbE RJ45 ports with Layer 3 routing for connecting desktops and wireless APs in corporate LANs, leveraging 136 Gbps non-blocking architecture.
Branch Office
Rack-mount 1U design with 4x combo SFP uplinks supports aggregation to core switches, using ExtremeXOS for QoS and VLAN management in remote sites.
SMB Networks
Delivers Gigabit Ethernet with advanced traffic management and 101 Mpps throughput, ideal for small-to-medium businesses needing scalable Layer 3 features.
Data Center Edge
4 combo SFP ports enable fiber uplinks for server connectivity, with low-latency <5 µs performance and support for 9KB jumbo frames.

Frequently asked questions

What ports does the Summit X440-48t have?

Details

Shipping, warranty & returns

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Compact Flash	512MB Compact Flash

CPU	Single Core CPU, 500 MHz clock

VLANs	4,094
Latency	<5 µs (64-byte)
Forwarding Rate	101 Mpps
Max Packet Size	9KB (Jumbo Frame Support)
IPv4 LPM Entries	32
Switching Capacity	136 Gbps
Layer 2/MAC Addresses	16K

Power Supplies	Fixed internal power supply

Depth	10.0 inches (25.4 cm)
Width	17.4 inches (44.1 cm)
Height	1.73 inches (4.4 cm)
Weight	9.1 lb (4.130 kg)
Rack Units	1U
Form Factor	Rack-mountable 1U Chassis
Mounting Type	Rack Mount

Interface/Ports

SFP Ports	4 x 100/1000BASE-X unpopulated SFP (4 combo)
Network Ports	48 x 1GbE RJ45 copper; 4 x 1GbE SFP fiber/copper combo
Ethernet Ports	48 x RJ-45 10/100/1000Base-T; 4 x Combo SFP Ports
Stacking Ports	2 x SummitStack

Extreme Networks X440-48t 48 x RJ-45 10/100/1000Base-T; 4 x Combo SFP Ports Switch