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WS-C3850-24U-L
Cisco WS-C3850-24U-L Catalyst 3850 24-Port Gigabit UPOE Swit...
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WS-C3850-24U-L provides UPOE endpoint power on 24 Gigabit Ethernet copper access ports in a managed Layer 2+ enterprise access switch. The modular uplink bay ships without a network module: C3850-NM-4-1G adds four Gigabit Ethernet interfaces, while C3850-NM-2-10G provides a configuration with two 10 Gigabit Ethernet interfaces. This rack-mount 1U member of the Cisco Catalyst 3850 Series carries LAN Base software for access switching with limited routing. The 24-port Gigabit UPOE access switch connects powered endpoints without changing the native access-port speed. The discontinued WS-C3850-24P-L differs by supplying PoE+ rather than UPOE, making endpoint power requirements the relevant distinction between these two legacy variants.
WS-C3850-24U-L price for new stock is $2,514.75, a 61.3% saving from the Cisco list price of $6,500.00. WS-C3850-24U-L refurb price is $199.50. WS-C3850-24U-L is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-C3850-24U-L for additional pricing. Browse the full Cisco 3850 Catalyst Switches series or explore all Cisco products.
92 Gbps switching capacity supports the access ports and permitted uplink configuration. 800W of shared PoE power requires endpoint loads to be allocated within the available budget; two PWR-C1-1100WAC supplies increase available PoE power to 1900W. Limited Static routing is included, but full OSPF, EIGRP, BGPv4 and IS-ISv4 are not included in the supplied software tier. WS-C3850-24U-L pairs 4 GB of DRAM with 2 GB of flash for software operation and storage. Cisco UADP forwarding silicon supports a 32000-entry MAC address table, while the hardware IPv4 route total is 24000; that hardware scale does not add a dynamic-routing entitlement. StackWise-480 connects nine members with 480 Gbps of stack bandwidth. Administrators can use console access, SSH, Telnet and SNMP, with Cisco Prime Infrastructure providing centralized management. SSH and encrypted SNMPv3 require the cryptographic software image. Three modular fans provide chassis cooling.
WS-C3850-24U-L is available from ORM Systems 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; returns are available for 30 days on every condition, terms apply. Certified refurbished units are inspected and bench-tested for power-on, POST, rated-speed port links, clean boot and PoE output under load on every powered port, with firmware verified and configuration wiped to factory default. Specify condition, uplink configuration and power requirements on the PO; Cisco's Enhanced Limited Lifetime Warranty and Cisco service ended October 31, 2025. PO acceptance, government Net-30 and RMA with advance replacement support enterprise and volume orders.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS XE |
License Tier | LAN Base |
Port Configuration | 24 x 1G UPOE; modular uplinks |
PoE Budget | 800W single supply / 1900W dual supply |
Stacking | StackWise-480; nine members |
Replacement PID | C9300-24U-E |
Organizations deploy the WS-C3850-24U-L Catalyst 3850 24-Port uPOE LAN Base switch to power Wi-Fi 6 APs, VoIP phones, and digital signage over a single copper infrastructure. Result: centralized power delivery up to 60 W per port, simplified cabling, and 30% faster branch deployments.
IT teams stack multiple WS-C3850-24U-L switches via StackWise-480 to build a high-performance campus edge fabric with 480 Gbps backplane throughput. Result: sub-50 ms failover, unified single-pane management, and linear performance scaling to accommodate growing user and IoT device density.
Enterprises implement WS-C3850-24U-L switches at building entrances to power uPOE IP cameras, door controllers, and environmental sensors on isolated VLANs. Result: guaranteed QoS for real-time video streams, granular per-port ACL security, and uninterrupted monitoring for regulatory compliance.
When an endpoint refresh requires maximum UPOE power across every access port, the standard supply configuration needs additional power capacity. Pair PWR-C1-1100WAC with PWR-C1-715WAC for that full-port power requirement. Record endpoint demand and the intended supply configuration, then specify the additional supply on the purchase order.
A branch rack rollout needs mounting accessories confirmed alongside the chassis rather than assumed from the switch part number. C3850-RAC-KIT= supplies the rack-mount kit, while C3850-4PT-KIT= supplies extension rails and brackets for four-point mounting. Confirm rack attachment requirements and included accessories for the selected condition before releasing the PO.
An interoperability purchase may need to reproduce jumbo-frame behavior before a replacement enters an existing network. Catalyst 3850 supports a 9198-byte jumbo frame, so test traffic and adjacent interfaces need consistent settings during validation. Specify the required software image and uplink configuration for the staged unit before the purchase order.
Active Cisco hardware support
Cisco service for WS-C3850-24U-L ended October 31, 2025. C9300-24U-E is the successor for buyers moving from this discontinued 24-port UPOE model to its replacement.
Multigigabit copper access ports
WS-C3850-24U-L has Gigabit Ethernet access ports, not 2.5G or 5G downlinks. Installing a faster uplink module does not increase the native copper access-port speed.
Dynamic routing without license changes
LAN Base permits limited Static routing rather than full OSPF, EIGRP or BGPv4. A requirement for those routing protocols is outside the supplied software tier.
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| WS-C3850-24U-L |  WS-C3850-24XS-S |  WS-C3850-32XS-E |  WS-C3850-12X48U-L | |
|---|---|---|---|---|
| Depth | 488 mm | 450 mm | 18.28 inches | 12.0 inches |
| Ethernet Technology | Gigabit Ethernet | 10 Gigabit Ethernet | 10/100/1000 | 10/100/1000 |
| Flash Memory | 2 GB | 4 GB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-mount | Rack-mount |
| Height | 44.5 mm | 44.5 mm | 1.73 inches | 1.73 inches |
| Manufacturer Part Number | WS-C3850-24U-L | WS-C3850-24XS-S | WS-C3850-32XS-E | WS-C3850-12X48U-L |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB |
| Power Consumption | 84.8W (excluding PoE load / C3850-NM-2-10G installed) | 205.5W (100% traffic with C3850-NM-8-10G installed) | 370 W | 370 W |
| Switching Capacity | 92 Gbps | 640 Gbps | 480 Gbps | 1280 Gbps |
| Weight | 7.5 kg | 6.1 kg. | 25 lbs | 25 lbs |
| Width | 445 mm | 445 mm | 17.28 inches | 17.5 inches |
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Reviewed on the 10 January 2020
UPoE support handled high-power devices effortlessly.
Reviewed on the 31 August 2022
Strong LAN Base features with dependable performance.
Reviewed on the 23 December 2022
Ideal for powering phones, cameras, and access points.
Reviewed on the 26 May 2019
Cisco hardware quality with flexible deployment options.
Reviewed on the 31 August 2018
Stable switch for enterprise access networks.
WS-C3850-24U-L identifies a Catalyst 3850 switch with 24 Gigabit Ethernet UPOE ports and LAN Base software. WS-C3850 identifies the switch family, 24 identifies the access-port count, U identifies UPOE, and L identifies LAN Base. The part number does not specify an installed uplink module; that component is selected separately.
The Catalyst 3850 is managed through its console CLI, remote CLI over SSH or Telnet, SNMPv1, SNMPv2c or SNMPv3, and Cisco Prime Infrastructure; optional Cisco DNA Center provides centralized management. SSH and encrypted SNMPv3 require the cryptographic image. Specify the management approach and image requirements when ordering.
WS-C3850-24U-L reached end of sale on October 30, 2020, and its last date of Cisco support was October 31, 2025. Cisco service has ended for this discontinued model. C9300-24U-E is its replacement, so distinguish a legacy spares order from a migration purchase before selecting the chassis.
ORM offers WS-C3850-24U-L new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units. Returns are available for 30 days on every condition; terms apply. Cisco's Enhanced Limited Lifetime Warranty and Cisco service ended October 31, 2025.
WS-C3850-24U-L includes perpetual LAN Base; no DNA subscription is needed for base operation. Historical add-ons include Cisco DNA Essentials, Cisco DNA Advantage and Cisco DNA Premier, each with a three-year minimum term. Advantage and Premier require IP Base or IP Services. Smart Accounts track term expiry; deactivation and reload retain base capabilities. RTU upgrades change the base tier.
WS-C3850-24U-L replaced WS-C3750X-24U-L, whose end-of-sale date was October 30, 2016. Both ordering identities describe 24-port UPOE switches with LAN Base software. The older model is discontinued, and WS-C3850-24U-L has also passed its Cisco support deadline. For migration rather than legacy sparing, the forward replacement is C9300-24U-E.
WS-C3850-24U-L provides an 800W shared PoE budget with its standard PWR-C1-1100WAC supply, or 1900W with two PWR-C1-1100WAC supplies. UPOE supports 60W per port. Twenty-four ports at 60W require 1440W, exceeding the standard budget, so maximum per-port power cannot be assumed across all ports with one supply.
WS-C3850-24U-L accepts C3850-NM-4-1G for four Gigabit Ethernet uplinks or C3850-NM-2-10G for a configuration with two 10 Gigabit Ethernet uplinks. The base chassis ships without either module. Select the module for the required uplink speed and include compatible optics separately rather than assuming fiber connectivity arrives with the switch.
The Catalyst 3850 supports nine members through StackWise-480, with 480 Gbps of stack bandwidth. Cable options are STACK-T1-50CM=, STACK-T1-1M= and STACK-T1-3M=. LAN Base members require matching software levels. Power sharing is separate from data stacking, and CAB-SPWR-30CM= or CAB-SPWR-150CM= must be purchased separately for LAN Base configurations.
WS-C3850-24U-L does not include full OSPF or BGPv4 routing under its supplied LAN Base tier; limited Static routing is included. Full OSPF, EIGRP, BGPv4 and IS-ISv4 require IP Services. Treat a routing-feature requirement as a software-entitlement decision rather than assuming the hardware route capacity enables those protocols.
WS-C3850-24U-L provides UPOE power up to 60W per port, while WS-C3850-24P-L provides PoE+ power up to 30W per port. Both models are discontinued. The UPOE variant suits retained installations with higher-power endpoints; the PoE+ variant suits legacy installations whose endpoints stay within the lower per-port power class.
WS-C3850-24U-L carries LAN Base software, while WS-C3850-24U-S carries IP Base software. Both are discontinued 24-port UPOE models. LAN Base suits retained access switching with limited Static routing; IP Base suits retained routed-access requirements. Match the installed software level when selecting a replacement member for an existing stack.
WS-C3850-24U-L is discontinued and passed its Cisco support deadline on October 31, 2025, while C9300-24U-E is its replacement. Both identities retain 24-port UPOE access. The older model serves legacy replacement or spares requirements; C9300-24U-E is the successor to specify for a migration purchase rather than another legacy chassis.
WS-C3850-24U-L consumes 84.8W at full traffic with C3850-NM-2-10G installed and no PoE load. That figure excludes power delivered to endpoints and is not a fully loaded installation maximum. The PWR-C1-1100WAC rating describes supply capacity, not measured switch consumption, so do not substitute that rating when estimating operating draw.
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