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WS-C3850-16XS-E
Cisco WS-C3850-16XS-E Catalyst 3850 12-Port 10 Gigabit Fiber...
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WS-C3850-16XS-E combines 12 fixed 1/10G SFP+ interfaces with the included C3850-NM-4-10G network module providing four additional 1/10G SFP+ ports. The resulting 16-port fiber bundle is a managed Layer 3 switch for enterprise access and aggregation, with IP Services enabling advanced routing. Its non-PoE connections serve fiber-linked access switches rather than supplying endpoint power. Within the Cisco Catalyst 3850 series, this configuration uses a full-width 1U rack chassis rather than a desktop enclosure. The discontinued WS-C3850-16XS-S supplies the same port bundle with IP Base instead. The fixed fiber interfaces and removable uplink card make the hardware configuration important when matching an existing installation or specifying replacement stock.
WS-C3850-16XS-E price for new stock is $10,209.15. WS-C3850-16XS-E refurb price is $747.60. WS-C3850-16XS-E is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for WS-C3850-16XS-E for additional pricing. Browse the full Cisco 3850 Catalyst Switches series or explore all Cisco products.
320 Gbps switching capacity accommodates the fiber hardware with its maximum supported uplink configuration. 227.28 Mpps forwarding capacity provides the packet-processing figure for traffic sizing, while 24000 total IPv4 entries cover ARP and learned routes together. OSPF, EIGRP, BGPv4, and IS-ISv4 support advanced IPv4 routing; OSPFv3 and EIGRPv6 extend routing to IPv6. PIM-SM, PIM-DM, and SSM provide multicast routing options, and VRF-Lite separates routing instances. WS-C3850-16XS-E uses 4 GB of DRAM and 4 GB of flash for its operating software and configuration storage. The MAC table accommodates 32000 entries for address learning. StackWise-480 stacks nine members with 480 Gbps of stacking bandwidth and presents a single managed switching system. Three C3850-FAN-T1= fan modules provide chassis cooling, so this is not a fanless design. 112.7W maximum measured consumption under full IMIX traffic supplies a tested electrical-load figure for power planning. LACP aggregates links, while UDLD detects unidirectional fiber-link faults.
WS-C3850-16XS-E is offered new sealed or certified refurbished, with ORM coverage of up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units; both conditions include 30-day returns, terms apply. Certified refurbished units are inspected and bench-tested for power-on, POST, rated-speed port links, clean boot, and optics bay recognition; firmware is verified and configuration wiped to factory default. Specify the condition, quantity, and required accessories on the purchase order. ORM Systems accepts POs, offers Net-30 for government and RMA with advance replacement, and handles 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 | 12 x 10G fixed / 4 x 10G C3850-NM-4-10G |
Stacking | StackWise-480 / nine members |
Lifecycle Status | End of sale April 30, 2022 |
Replacement PID | C9300X-12Y |
In a mid-sized data center, network architects deploy the WS-C3850-16XS-E Catalyst 3850 16-Port 10G Fiber Switch IP Services as a top-of-rack aggregation node. It consolidates 16 SFP+ server uplinks at full 10 Gbps line rate, supports hardware VXLAN termination and advanced IP Services routing, and integrates redundant power and StackWise-480. Benefit: Delivers ultra-low latency, deterministic throughput and high availability for east-west traffic, accelerating VM migrations and reducing network bottlenecks.
A large university campus leverages the WS-C3850-16XS-E as its primary distribution-layer switch, aggregating multiple building access switches over 10G fiber. With OSPF/EIGRP dynamic routing, Cisco TrustSec segmentation and Quality of Service (QoS) policies, the switch ensures consistent performance for wired and wireless services. Benefit: Simplifies network design, enhances security through macro-segmentation, and delivers guaranteed bandwidth for high-density Wi-Fi, VoIP and video applications.
A global enterprise deploys the WS-C3850-16XS-E at branch campuses to terminate 10 Gbps fiber uplinks and enforce multi-tenant security zones. Using IP Services features—VRF-Lite for isolated routing, advanced ACLs, and hardware-accelerated IPsec VPN—the switch segments voice, data and IoT traffic. Benefit: Strengthens branch-level security, reduces MPLS/WAN costs by offloading traffic directly to cloud services, and maintains deterministic performance for critical applications.
An existing Catalyst 3850 stack needs another fiber member without changing its operating feature set. Mixed feature-set stacks are not supported, and members require matching software. Specify STACK-T1-50CM=, STACK-T1-1M=, or STACK-T1-3M= according to physical spacing, then confirm the existing members can use the ordered feature set before the PO.
A branch installation needs a cabinet layout that accommodates both front fiber connections and rear service access. Installation clearance includes 111 mm behind the chassis and at least 76 mm around ventilation openings. Check cabinet obstructions and cable routing, then specify the required clearance before ordering the enclosure and switch together.
A staging bench needs a console connection before network management is configured. The USB console takes precedence when USB and RJ-45 console connections are attached together, and a Windows workstation requires the USB driver. Prepare the terminal for 9600 baud and specify the console connection method before the PO.
PoE power for connected endpoints
WS-C3850-16XS-E has no PoE output from its fiber interfaces. Connected phones, access points, or other powered endpoints require a separate power source.
40G physical uplink interfaces
WS-C3850-16XS-E supports C3850-NM-4-10G uplinks at 10G maximum. C3850-NM-2-40G is not compatible with the 12-port SFP+ hardware used in this bundle.
Cisco support beyond April 2027
Cisco service for WS-C3850-16XS-E ends April 30, 2027, including applicable warranty-based support. C9300X-12Y is the migration replacement; select its orderable configuration separately.
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| WS-C3850-16XS-E |  WS-C3850-24XS-E |  WS-C3850-32XS-E |  WS-C3850-12X48U-L | |
|---|---|---|---|---|
| Depth | 450 mm | 450 mm | 450 mm | 488 mm |
| Ethernet Technology | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | Multi-Gigabit (2.5G/5G) |
| Flash Memory | 4 GB | 4 GB | 4 GB | 2 GB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44.5 mm | 44.5 mm | 44.5 mm | 44.5 mm |
| Manufacturer Part Number | WS-C3850-16XS-E | WS-C3850-24XS-E | WS-C3850-32XS-E | WS-C3850-12X48U-L |
| Memory | 4 GB | 4 GB | 4 GB | 4 GB |
| Power Consumption | 112.7W | 205.5W at 100% traffic with C3850-NM-8-10G installed | 205.5W (100% traffic) | 208.1W (C3850-NM-8-10G installed; no PoE load) |
| Switching Capacity | 320 Gbps | 640 Gbps | 640 Gbps | 472 Gbps |
| Width | 445 mm | 445 mm | 445 mm | 445 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 90 days, for dependable protection on every order. The exact term is confirmed on your quote, order confirmation and invoice.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Same-day dispatch from regional hubs, free next-day delivery*, fully tracked and insured.
Reviewed on the 2 February 2017
Electronic licensing was fast and reliable.
Reviewed on the 13 July 2019
Consistent fiber performance under heavy traffic.
Reviewed on the 16 August 2023
Cisco-grade stability for enterprise access.
Reviewed on the 22 June 2017
IP Services enabled robust Layer 3 routing on 10G ports.
Reviewed on the 25 July 2025
Strong choice for high-speed deployments.
WS-C3850-16XS-E identifies a Catalyst 3850 fiber bundle: WS-C3850 is the family identifier, 16XS denotes 12 fixed SFP+ interfaces with four additional C3850-NM-4-10G ports, and E indicates IP Services. The sixteen interfaces are divided between the fixed chassis and the included removable network module.
WS-C3850-16XS-E supports Device Manager and controller web interfaces, CLI access through USB or RJ-45 console and SSH or Telnet, SNMP monitoring, and Cisco Prime Infrastructure. Cisco DNA Center provides licensed automation functions. The USB console takes precedence over the RJ-45 console when both are connected.
WS-C3850-16XS-E reached end of sale on April 30, 2022, and its last date of Cisco support is April 30, 2027. Software maintenance releases ended April 30, 2023. Existing eligible service coverage follows those limits, and C9300X-12Y is the migration replacement for this fiber configuration.
ORM Systems offers WS-C3850-16XS-E new sealed with up to a 3-year extended warranty or certified refurbished with up to 1 year; both include 30-day returns, terms apply. Cisco's original-owner Enhanced Limited Lifetime terms remain subject to discontinuance limits, and applicable Cisco service ends April 30, 2027.
IP Services is the base feature set on WS-C3850-16XS-E; optional Cisco DNA Essentials and Cisco DNA Advantage add-ons were offered for three- or five-year terms. Smart Accounts manage add-on entitlements. At expiry, renew the add-on or deactivate it and reload to continue using base features.
Yes, WS-C3850-16XS-E includes C3850-NM-4-10G, which adds four 1/10G SFP+ interfaces to the twelve fixed SFP+ interfaces. The bundle therefore does not require a separate purchase of that network module. Match the installed transceivers and fiber connections to the intended link speeds before finalizing the order.
Catalyst 3850 StackWise-480 stacks nine members with 480 Gbps of stacking bandwidth. Data connections use STACK-T1-50CM=, STACK-T1-1M=, or STACK-T1-3M= cables. Members must use matching feature sets and software. Catalyst 3650 switches cannot join the same stack, and the 48-port SFP+ Catalyst 3850 models do not support stacking.
WS-C3850-16XS-E ships with one PWR-C1-350WAC power supply, and the second internal power-supply bay is empty by default. A second PWR-C1-350WAC can provide internal supply redundancy. PWR-C1-440WDC is also supported as a configuration option, but the standard bundle is supplied with AC power.
No, WS-C3850-16XS-E provides no PoE output because its network connections are fiber interfaces rather than powered copper access ports. The PWR-C1-350WAC supplies the switch hardware, not attached endpoints. Phones, access points, and other powered devices need their own power source or a separate PoE-capable access switch.
The IP Services fiber bundle supports full OSPF, EIGRP, BGPv4, and IS-ISv4, with OSPFv3 and EIGRPv6 for IPv6 routing. PBR, VRF-Lite, and multicast routing through PIM-SM, PIM-DM, and SSM are also available. Its 24000 total IPv4 entries include ARP and learned routes rather than learned routes alone.
WS-C3850-16XS-E includes IP Services, whereas WS-C3850-16XS-S includes IP Base on the same twelve-port fiber hardware with C3850-NM-4-10G. Both models are discontinued. The E variant suits existing installations requiring advanced enterprise routing; the S variant matches estates standardized on the entry-level IP Base feature set.
WS-C3850-16XS-E supplies twelve fixed SFP+ ports plus four C3850-NM-4-10G ports, while WS-C3850-32XS-E supplies twenty-four fixed SFP+ ports plus eight C3850-NM-8-10G ports. Both bundles are discontinued and use IP Services. The smaller bundle matches existing sixteen-interface layouts; the larger bundle fits replacement stock for thirty-two-interface installations.
C9300X-12Y is the migration replacement for the discontinued WS-C3850-16XS-E, whose end-of-sale date was April 30, 2022. Cisco support for the older bundle ends April 30, 2027. WS-C3850-16XS-E matches existing Catalyst 3850 replacement-stock requirements, while C9300X-12Y is the migration choice for a new hardware generation.
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