Name: R5W3X Dell S4128T-ON 28 x Ports 10GBase-T + 2 x 40GbE QSFP Layer 3 Managed Gigabit Ethernet Network Switch
Brand: Dell
SKU: R5W3X
Price: 3949.00 USD
Availability: InStock
Rating: 4.8 (125 reviews)

Product Overview
The Dell S4128T-ON is a Layer 3 managed Ethernet switch that combines high-density 10GBase-T ports with 40GbE uplink capabilities. It fits well in enterprise and data center settings where flexible connectivity and routing control are required. Its design supports a wide range of network topologies and operational needs without compromising ease of management.

General Information
Brand	Dell
Part Number	R5W3X
Condition	Refurbished

Technical Information
Switch Ports	28
Number of Ports	28-Ports
Port Type	10GBase-T, 40G QSFP+
Port Speed	10 Gbps, 40 Gbps
UpLink Ports	2 (40GbE QSFP+)
POE Support	No
Switching Capacity	720 Gbps
Switch Forwarding Rate	1,406,250,000 pps
DRAM	8 GB
Flash Memory	4 GB
VLAN Support	Yes
Max VLANs Supported	1-4094
Layer Support	Layer 3
Connector Type	RJ-45,QSFP+

Performance
Latency	≈2 µs
Jumbo Frame Support	Up To 9216 Bytes
MAC Address Table Size	32000

Management and Configuration
Routing Protocols	Static, RIP, OSPF, BGP, VRRP, HSRP, PIM-SM, IGMP, Policy-Based Routing (PBR)
Remote Protocols	Yes
Management Interfaces	Serial Console (RJ-45),USB Console,RJ-45 (Mgmt)
Security Features	802.1X,RADIUS,TACACS+,SSH,ACLs,Port Security,Storm Control
Remote Management Protocol	SSH,HTTPS,Telnet,SNMPv2/v3,REST,NETCONF

Power & Cooling
Fans	4 (front-to-back, hot-swappable)
Power	AC 100-240V, 50-60Hz (autosensing)

Physical Characteristics
Weight	5.00
Operating Temperature	0°C to 40°C

Miscellaneous
Compliance Standards	RoHS, CE, FCC, UL, TUV, cULus
Compliant Standards	IEEE 802.3,IEEE 802.3u,IEEE 802.3ab,IEEE 802.3z,IEEE 802.3x,IEEE 802.1Q,IEEE 802.1p,IEEE 802.1D,IEEE 802.3ad

Product Description
The Dell S4128T-ON is a versatile network switch built for environments requiring robust 10 Gigabit Ethernet connections alongside high-speed uplinks. It's commonly found in data centers and enterprise networks where both performance and manageability are essential. Often deployed by network administrators and IT teams managing large scale infrastructures, this switch provides flexible Layer 3 routing to handle complex traffic flows efficiently. Its 28 copper 10GBase-T ports support existing cabling while the 2 QSFP 40GbE ports enable seamless uplinks or stacking. Key Features Extensive 10GBase-T port count for broad device connectivity 40GbE QSFP uplinks suitable for high-throughput aggregation Layer 3 capabilities including static routing and dynamic protocols ONIE support allowing open network operating system installation Compact 1RU form factor ideal for rack deployments This switch is regularly deployed in enterprise core or aggregation layers, providing reliable throughput and routing performance. It supports a variety of workloads, from virtualization to cloud connectivity, helping maintain smooth network operations without bottlenecks.

Use Cases
The Dell S4128T-ON switch is primarily deployed in enterprise and data center environments where high-density 10G copper connectivity and scalable uplink capacity are essential. Network architects and IT professionals managing virtualization, storage, and high-throughput applications benefit from its flexible Layer 3 features and multiple 40GbE uplinks. How It's Used: Aggregating multiple 10GBase-T server connections in data center top-of-rack (ToR) deployments to optimize network performance. Supporting enterprise campus networks requiring robust Layer 3 routing with high port density for diverse device connectivity. Facilitating virtualization environments by providing low-latency, high-bandwidth links between hypervisor hosts and storage clusters. Enabling edge computing setups with compact, high-speed switching for local data processing and network segmentation. Providing scalable uplink capacity for SMB networks transitioning to 10GbE infrastructures with growing bandwidth demands. By delivering a balance of high-port density and advanced routing capabilities, the Dell S4128T-ON streamlines network operations and supports scalability in complex environments. This ensures consistent throughput and simplified management as workloads expand or evolve.