DELL S4820T 210-AADO Leaflet

High Density 1/10G BASE-T Switch

The Dell Networking S-Series S4820T 1/10G BASE-T Top-

of-Rack (ToR) switch is purpose-built for high performance 

data centers. By leveraging a non-blocking, cut-through 

(default mode is store and forward) switching architecture, 

the S4820T delivers line-rate L2/L3 features to maximize 

network performance. The S4820T design provides (48) 

1/10G BASE-T ports that support 100Mb/1Gb/10Gb and 

four 40GbE QSFP+ uplinks. Each 40GbE QSFP+ uplink can 

be broken out into four 10GbE ports using breakout cables. 
Priority-based Flow Control (PFC), Enhanced Transmission 

Selection (ETS), Data Center Bridge Exchange (DCBx) 

coupled with line rate throughput positions the S4820T 

as an ideal solution for data center ToR applications 

for servers, and storage arrays. In addition, the S4820T 

incorporates multiple architectural features that optimize 

data center network flexibility, efficiency, and availability. 

These features include IO panel to PSU airflow or PSU 

to IO panel airflow for hot/cold aisle environments, and 

redundant, hot-swappable power supplies and fans.
S4820T also supports Dell Networking’s Open Automation 

Framework, which provides advanced network automation 

and virtualization capabilities for virtual data center 

environments. The Open Automation Framework is 

comprised of a suite of inter-related network management 

tools that can be used together or independently to 

provide a network that is flexible, available and manageable 

while helping to reduce operational expenses.

Key applications 

•  High-density 1/10G BASE-T ToR server aggregation in   

high-performance data center environments

•  Design with the Z-Series core switch to create a         

two-tier, non-blocking 1/10/40GbE data center network 

architecture

•  Lossless iSCSI storage deployments using DCB
•  Enterprise, Web 2.0, and cloud service providers’ data 

center networks for ToR and end of row applications

Key features

•  1/10GbE copper connectivity for maximum flexibility 

and investment protection

•  1.28 Tbps (full-duplex) non-blocking, cut-through       

(default mode is store and forward) switching fabric of-

fers line-rate performance

•  IO panel to PSU airflow or PSU to IO panel airflow
•  Redundant, hot-swappable power supplies and fans

•  Modular Dell FTOS software offers inherent stability  

as well as advanced monitoring and serviceability  

functions

•  Supports jumbo frames for high-end performance 

in virtualized environments and IP storage/server             

communication

•  128 link aggregation groups with up to 8 members per 

group

•  Support for L2 multipath using Virtual Link Trunking 

(VLT) & enhanced VLT (eVLT)

•  Scalable L2/L3 Ethernet switching with QoS and 

standards-based IPv4/IPv6 features

•  User port stacking support for up to 6 units that is   

managed as one logical device 

•  Open Automation Framework adds VM-awareness 

as well as automated configuration and provisioning       

capabilities to simplify the management of virtual      

network environments 

 

 

 

1/10G BASE-T Cabling Distances

Cable Type

1G BASE-T

10G BASE-T

Cat 6 UTP

100m (330 ft)

55m (180 ft)

Cat 6 STP

100m (330 ft)

100m (330 ft)

Cat 6A UTP

100m (330 ft)

100m (330 ft)

Cat 7

100m (330 ft)

100m (330 ft)

Flexible, powerful                     
top-of-rack switch for                
data centers of all sizes

Dell Networking S-Series

S4820T high-performance 1/10/40GbE top-of-rack switch

High-density, 1RU 48-port 1/10G BASE-T switch plus four 40GbE uplinks with non-blocking line-rate 
performance; feature-rich Dell Networking Operating System (FTOS); optimized for iSCSI, DCB and  
ToR applications for Dell 12G rack servers , blade servers with Dell Networking MXL blade switch ,and 
storage solutions.