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WS-C3850-24S-E
Cisco WS-C3850-24S-E Catalyst 3850 24-Port Gigabit SFP Switc...
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WS-C3850-24S-E is a managed Layer 3 enterprise access switch with 24 fixed Gigabit SFP downlinks and the IP Services feature set. Its fiber connections serve downstream switches and fiber-equipped endpoints without supplying PoE. The Catalyst 3850 chassis occupies one rack unit and provides an empty modular uplink bay rather than built-in uplink ports. C3850-NM-4-1G adds four Gigabit uplinks, while C3850-NM-2-10G supports two 10G uplinks alongside two Gigabit connections. Neither uplink card is included in the base configuration. This 24-port Gigabit SFP switch combines fiber access density with advanced routing rather than powered copper connectivity. The discontinued WS-C3850-24S-S carries the same downlink configuration with IP Base instead of IP Services, making the software feature set the distinction between these two fiber variants.
WS-C3850-24S-E price for new stock is $758.10, a 98.2% saving from the Cisco list price of $42,810.00. WS-C3850-24S-E refurb price is $564.35. WS-C3850-24S-E is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-C3850-24S-E for additional pricing. Browse the full Cisco 3850 Catalyst Switches series or explore all Cisco products.
92 Gbps switching capacity accommodates the fixed downlinks and supported uplink configurations. 68.4 Mpps forwarding rate applies with C3850-NM-2-10G providing two 10G and two Gigabit uplinks. OSPF, EIGRP, BGPv4 and IS-ISv4 enable dynamic IPv4 routing, while OSPFv3 and EIGRPv6 support IPv6 routing. PIM-SM, PIM-DM and SSM support multicast distribution; PBR controls traffic redirection, and VRF-Lite separates routing instances. WS-C3850-24S-E runs Cisco IOS XE with 4 GB of DRAM for control-plane processing and 2 GB of flash for local software storage. Its address resources accommodate 32000 MAC entries and 24000 total IPv4 route entries, including ARP and learned routes. CLI access supports configuration over console, SSH or Telnet, while Cisco Network Assistant and Cisco Prime Infrastructure provide GUI-based administration. Flexible NetFlow supports traffic analysis, and MSTP or PVRST+ controls Layer 2 topology convergence. Native 10G downlinks are absent; that speed is confined to the compatible uplink configuration.
WS-C3850-24S-E is offered new sealed or certified refurbished, with ORM warranties of up to a 3-year extended term for new units and up to 1 year for certified refurbished units; every condition includes 30-day returns, with terms applying. Certified refurbished units are inspected and bench-tested, including optics bay recognition, with firmware verified and configurations wiped to factory default. Cisco's Enhanced Limited Lifetime Warranty is limited to eligible original owners and ends April 30, 2027; specify the condition and required accessories on the purchase order. For enterprise and volume orders, consolidate quantities on one PO: ORM Systems accepts POs, offers Net-30 for government and RMA with advance replacement, and maintains regional stock and RMA across the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS XE |
License Tier | IP Services |
Port Configuration | 24 x 1G SFP / modular uplink bay |
Stacking | StackWise-480 / 9 members |
Replaces | WS-C3750X-24S-E; end of sale October 30, 2016 |
Replacement PID | C9300-24S family / C9300-24S-A configuration |
In a global financial services environment, IT deploys the WS-C3850-24S-E Cisco Catalyst 3850 24 Port GE SFP IP Services switch as a central hub to terminate DMVPN and backup MPLS circuits, enabling dynamic routing, integrated QoS and uninterrupted failover between sites. The outcome is a consolidated, resilient WAN fabric delivering 99.99% uptime, simplified policy enforcement and accelerated secure connectivity across all branch offices.
A mid-sized university implements the WS-C3850-24S-E Catalyst 3850 24 Port GE SFP IP Services switch at the building aggregation layer to converge VoIP, HD video lectures and administrative traffic over high-density SFP uplinks with advanced multicast and QoS policies. This design delivers consistent voice quality, deterministic video streaming and granular network segmentation, boosting user experience while streamlining management.
A smart manufacturing plant leverages the WS-C3850-24S-E Catalyst 3850 24 Port GE SFP IP Services switch to connect PLC controllers, IoT sensors and HD surveillance cameras over fiber links, using VRF-Lite for secure tenant separation and network automation for zero-touch deployment. The result is a low-latency, segmented edge network that ensures real-time data flow, tight access control and simplified operational efficiency.
A replacement purchase for the discontinued WS-C3750X-24S-E starts with WS-C3850-24S-E, the named migration target for that older model. The predecessor reached end of sale on October 30, 2016. Treat the change as a hardware migration rather than a parts swap; confirm accessory compatibility before specifying the purchase order.
When an existing routed access design needs additional VLAN interfaces, the Catalyst 3850 supports 1000 switched virtual interfaces and 4000 VLAN IDs. These are separate resources, so an interface plan should distinguish routed VLANs from VLAN identifiers used only for switching. Check both inventories against the proposed configuration before approving the purchase order.
A staging purchase that relies on USB console access needs a 5-pin USB mini-Type B connection. The USB console takes precedence over the RJ-45 console, and Windows hosts require the Cisco USB driver. Confirm the workstation driver and console connection before specifying the bench accessories on the purchase order.
10G fiber on every downlink
WS-C3850-24S-E fixed SFP downlinks support Gigabit Ethernet rather than 10GbE. Compatible uplink cards do not increase the native speed of those access interfaces.
PoE power for attached endpoints
WS-C3850-24S-E provides Gigabit SFP connectivity without PoE output. Devices requiring power from the access switch cannot receive that power through these downlink interfaces.
Cisco support beyond April 2027
Cisco service for WS-C3850-24S-E ends April 30, 2027. C9300-24S-A is a current 24-port Gigabit SFP option within the C9300-24S replacement family.
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| WS-C3850-24S-E |  WS-C3850-24P-L |  WS-C3850-24S-S |  WS-C3850-24P-E | |
|---|---|---|---|---|
| Depth | 450 mm | 17.2 inches | 450 mm | 15.7 inches |
| Ethernet Technology | Gigabit Ethernet | 10/100/1000 | Gigabit Ethernet | 10/100/1000 |
| Flash Memory | 2 GB | 256 MB | 2 GB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-mount | Rack-Mount 1U | Rack-mount |
| Height | 44.5 mm | 1.75 inches | 44.5 mm | 1.75 inches |
| Manufacturer Part Number | WS-C3850-24S-E | WS-C3850-24P-L | WS-C3850-24S-S | WS-C3850-24P-E |
| Memory | 4 GB | 512 MB | 4 GB | 4 GB |
| Power Consumption | 109.75W with C3850-NM-2-10G at 100% traffic | 370W | 109.75W at full traffic with C3850-NM-2-10G | 370W |
| SFP Ports | 24 x 1GbE | 4 SFP Ports | 24 x 1GbE | 4 SFP Ports |
| Switching Capacity | 92 Gbps | 128 Gbps | 92 Gbps | 128 Gbps |
| Weight | 7.03 kg | 26 lbs | 7.03 kg | 24 lbs |
| Width | 445 mm | 17.5 inches | 445 mm | 17.5 inches |
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dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviewed on the 22 September 2018
Electronic IP Services license worked flawlessly.
Reviewed on the 21 August 2018
Fiber-based switching with enterprise reliability.
Reviewed on the 8 September 2020
Handled traffic efficiently with no bottlenecks.
Reviewed on the 30 August 2025
Cisco quality with flexible licensing.
Reviewed on the 30 September 2019
Strong access switch for modern networks.
WS-C3850-24S-E identifies a Catalyst 3850 switch with 24 Gigabit SFP ports and IP Services. WS-C3850 is the family identifier, 24 is the port count, S denotes SFP downlinks, and E selects IP Services. The base configuration also includes PWR-C1-350WAC and a modular uplink bay.
The Catalyst 3850 supports CLI management through console, SSH or Telnet, a Cisco Network Assistant GUI, Cisco Prime Infrastructure and SNMP. Console access uses RJ-45 or USB mini-Type B. Supported USB Bluetooth devices can provide serial or management connectivity, while Cisco DNA Center supplies subscription-dependent automation and monitoring.
WS-C3850-24S-E includes the IP Services base feature set; optional Cisco DNA Essentials and Cisco DNA Advantage add-ons use 3-year or 5-year terms. Smart Accounts manage the add-ons. At expiration, renew the subscription or deactivate the add-on and reload the switch to continue with base-license capabilities.
WS-C3850-24S-E supports C3850-NM-4-1G and C3850-NM-2-10G. C3850-NM-4-1G provides four Gigabit SFP slots; C3850-NM-2-10G provides two Gigabit-only slots and two slots supporting Gigabit SFP or 10G SFP+. The base switch includes no uplink card, so the purchase order must identify the required uplink configuration separately.
Yes, WS-C3850-24S-E supports StackWise-480 stacks of nine switches with 480 Gbps stack bandwidth. Stack members require matching software feature levels. STACK-T1-50CM=, STACK-T1-1M= and STACK-T1-3M= provide the available data-stacking cable lengths. Select the cable reach for the physical arrangement rather than using a power-stacking cable.
WS-C3850-24S-E supports full OSPF, EIGRP, BGPv4 and IS-ISv4 under IP Services, plus OSPFv3 and EIGRPv6 for IPv6 routing. PIM-SM, PIM-DM and SSM support multicast routing. PBR enables traffic redirection, and VRF-Lite separates routing instances. These capabilities distinguish the installed feature set from entry-level routed access licensing.
PWR-C1-350WAC is the standard power supply for the Catalyst 3850 24-port SFP switch. The base configuration includes one PWR-C1-350WAC, with the second bay covered by a blank. A second internal supply is optional rather than included; specify the required redundant power configuration separately on the order.
WS-C3850-24S-E has a published maximum of 109.75W with C3850-NM-2-10G at 100% traffic. The C3850-NM-4-1G configuration reaches 105.12W under the same traffic load. These are switch consumption figures, not the PWR-C1-350WAC output rating; specify the uplink configuration when sizing electrical service for the installation.
No, WS-C3850-24S-E does not supply PoE to connected devices. Its fixed downlinks are Gigabit SFP interfaces rather than powered copper access ports. Adding an uplink card or another PWR-C1-350WAC does not turn those downlinks into PoE outputs; connected endpoints need a separate power source.
WS-C3850-24S-E replaces the discontinued WS-C3750X-24S-E in the migration path for 24-port Gigabit SFP switches with IP Services. The older model reached end of sale on October 30, 2016. WS-C3850-24S-E is also discontinued, so a migration purchase must account for its remaining support horizon.
WS-C3850-24S-E reached end of sale on April 30, 2022, and its last date of Cisco support is April 30, 2027. New service attachment ended April 30, 2023, and contract renewals ended July 29, 2026. The C9300-24S family is the named replacement path, including the current C9300-24S-A configuration.
WS-C3850-24S-E includes IP Services, whereas WS-C3850-24S-S includes IP Base on the same 24-port Gigabit SFP configuration. Both models are discontinued. IP Services provides full OSPF, EIGRP, BGPv4 and IS-ISv4; the E model suits advanced routing requirements, while the S model suits IP Base deployments without those full routing features.
WS-C3850-24P-E supplies PoE+ on 24 copper access ports, whereas WS-C3850-24S-E provides unpowered Gigabit SFP downlinks. Both are discontinued Catalyst 3850 models. The powered copper model addresses endpoint-power requirements; the fiber model addresses Gigabit SFP connections where endpoint power is provided separately.
WS-C3850-24S-E is discontinued, while C9300-24S-A is a current ordering option in its Catalyst 9300 replacement family. Both provide 24 Gigabit SFP downlinks, but their purchase paths belong to different generations. The older model suits existing 3850 estates; C9300-24S-A suits replacement purchases requiring the current family.
ORM Systems offers WS-C3850-24S-E new sealed or certified refurbished. New orders include up to a 3-year extended ORM warranty; certified refurbished orders include up to 1 year. Every condition has 30-day returns, with terms applying. Cisco's Enhanced Limited Lifetime Warranty is limited to eligible original owners and ends April 30, 2027.
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