The S3900-24F4S-R is an L2+ managed stackable switch designed for SMBs, enterprises, midmarket, and branch office networks, offering a lower total cost of ownership. It features 24x 1G SFP ports (including 8x combo ports) and 4x 10G SFP+ uplinks, delivering a switching capacity of 128 Gbps and a forwarding rate of 96 Mpps. With dual redundant power supplies and a dual-fan design, the switch ensures reliable, uninterrupted operation even during power supply failures.
The switch supports stacking technology, which simplifies operations by interconnecting up to 8 switches that can be managed as a single logical device. It supports advanced features such as OSPF, Voice VLAN, robust QoS, Static Routing, and IPv6. Additionally, it offers simple device and network management through a Command-Line Interface (CLI) and an intuitive on-box web UI.
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Product Highlights
24-Port Gigabit Ethernet L2+ Switch, 16x 1Gb SFP, 8x 1Gb RJ45/SFP Combo Ports, with 4x 10Gb SFP+ Uplinks, Stackable Switch
Software Spotlights
Redundant, built-in power supplies
Up to 8 units stacking
IEEE 802.3ad Link Aggregation (LACP)
Graceful protocol restart (OSPF)
Virtual router redundancy protocol (VRRP)
Rapid link detection protocol (RLDP)
Rapid Ethernet uplink protection protocol (REUP)
Bidirectional forwarding detection (BFD)
Ethernet Ring Protection Switching (ERPS)
The spanning tree protocols (STPs)
IEEE 802.1x, RADIUS, TACACS+, Local Authentication
Port Security, IP+MAC+port binding
Port-based Authentication
Mac-based Authentication HTTPS and SSL (v3)
DHCP Snooping
IP Source Guard (IPSG)
DoS Protection
SNMP V1/V2/V3, HTTP, log
Remote monitoring (RMON)
Syslog, Web-based management, Telnet, SSH
Command-Line Interface (CLI)
LLDP (802.1ab)
Network Monitoring through Sampled Flow (sFlow)
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1+1 Redundant PSUs ensure the continuous normal operation of switch.
Voice VLAN improves voice traffic transmission priority and guarantees voice quality by assigning voice traffic to a dedicated VLAN without competing with other traffic.
LACP can control the bundling of several ports together to form a single logical channel, boosting bandwidth and network reliability without altering the infrastructure.
With network-level security and stability capabilities like SSH, ACLs, AAA, 802.1X, etc., it defends against network threats for enterprises, campuses, and the financial industry.
Dimensions (HxWxD) | 1.73"x17.32"x11.02" (44x440x280mm) | 1.73"x8.46"x14.02" (44x215x356mm) | 1.73''x17.33''x11.02'' (44x440x280mm) | 1.71''x17.32''x8.66'' (43.5x440x220mm) | 1.73''x8.46''x14.02'' (44x215x356mm) | 1.72"x17.32"x9.69" (43.6x440x246.1mm) |
Weight | 9.41 lbs (4.27kg) | 5.95 lbs (2.7kg) | 8.38 lbs (3.8kg) | 5.51 lbs (2.5kg) | 5.95 Ibs (2.7kg) | 8.75 lbs (3.97kg) |
Ports | 24x 1G SFP 4x 10G SFP+ | 24x 10/100/1000BASE-T 4x 10G SFP+ | 24x 100M/1G/2.5GBASE-T RJ45 6x 10G SFP+ | 24x 10/100/1000BASE-T 4x 2.5G SFP | 24x 100M/1000M/2.5GBASE-T 4x 10G SFP+ | 24x 10/100/1000BASE-T 4x 10G SFP+ |
Switch Chip | Realtek RTL9301 | Realtek RTL9301 | Realtek RTL9313 | Broadcom BCM53547 | Realtek RTL9313 | Broadcom BCM56150 |
Switching Capacity | 216 Gbps | 128 Gbps | 240 Gbps | 68 Gbps | 200 Gbps | 128 Gbps |
Forwarding Rate | 96 Mpps | 190.46 Mpps | 180 Mpps | 50.59 Mpps | 148.8 Mpps | 96 Mpps |
Power Supplies | 2 (1+1 Redundancy) Built-in, AC | 1 Built-in, AC | 1 Built-in, AC | 1 Built-in, AC | 1 Built-in, AC | 2 (1+1 Redundancy) Hot-swappable, AC |
Fans | 2 Built-in, Left-to-Right | 3 Built-in, Front-to-Back | 3 Built-in, Front-to-Back | Fanless | 3 Built-in, Front-to-Back | 1 Built-in, Right-to-Left |
Max. Power Consumption | 41W | 96W | 55W | 25W | 150W | 27W |
Stacking | 8 (Between S3900-24T4S-R & S3900-24F4S-R) | - | 4 (same model) | - | - | 4 (same model) |
Voice VLAN | Yes | Yes | Yes | Yes | Yes | - |
4x 10G SFP+
6x 10G SFP+
