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WS-C4928-10GE
Cisco WS-C4928-10GE Catalyst 4928-10GE 28-Port Gigabit Switc...
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WS-C4928-10GE is a managed fiber aggregation chassis with 28 Gigabit SFP interfaces and two fixed 10G X2 connections for campus distribution and branch core links. The Catalyst 4928-10GE provides a fixed interface layout rather than removable port-expansion cards. Its Layer 3 capabilities depend on the selected Cisco IOS image, so the chassis part number alone does not establish the routing feature set. X2 transceivers preserve the physical connection format used by existing installations; they are not native SFP+ cages. The 1U rack-mount chassis aggregates access-switch links rather than providing endpoint power, making interface format and software configuration important checks for a like-for-like replacement order.
WS-C4928-10GE price for new stock is $22,948.80. WS-C4928-10GE refurb price is $409.50. WS-C4928-10GE is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for WS-C4928-10GE for additional pricing. Browse the full Cisco 4900 Catalyst Switches series or explore all Cisco products.
96 Gbps switching capacity provides the aggregate fabric bandwidth for the fixed interface configuration. 72 Mpps hardware forwarding handles Layer 2 traffic, while IPv6 switching runs in software rather than following the same hardware path. WS-C4928-10GE uses 16 MB of shared packet buffering to hold traffic within a common pool. Runtime software uses 256 MB of DRAM, and 64 MB of embedded flash provides image storage. The address table accommodates 55000 unicast MAC entries for connected network identities. PVST, PVST+ and LACP support VLAN spanning-tree operation and link aggregation. OSPF, IS-IS and BGP require Enterprise Services rather than IP Base; the latter provides static routing, RIPv1, RIPv2 and EIGRP Stub. 150W system power dissipation supplies a chassis-level thermal-planning figure, not an endpoint-power allowance.
WS-C4928-10GE is available new sealed or certified refurbished; refurbished units are inspected and bench-tested, including optics bay recognition, with firmware verified and configuration wiped to factory default. Select the condition and include all required accessories on the purchase order. ORM provides up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units, with 30-day returns on every condition, terms apply; Cisco's original 1-year limited hardware warranty and service have ended. POs are accepted for enterprise and volume orders, with Net-30 for government, RMA with advance replacement, and regional stock and RMA across the UK, EU, US and MEA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | Cisco IOS |
Port Configuration | 28 x 1G SFP / 2 x 10G X2 |
Cooling | 4 fans in a removable fan tray |
Ships Without | Power supply |
Lifecycle Status | Cisco support ended February 28, 2018 |
Replacement PID | C9500-48Y4C through the discontinued Catalyst 4500-X migration path |
In a hyperscale data center environment, the WS-C4928-10GE-CATALYST 4928 28X 1GBASE-X SFP 2X 10GBASE-X (no PSU) is deployed as a leaf switch to aggregate server top-of-rack uplinks. Leveraging 28 1GBASE-X SFP ports for VM-to-VM traffic and two 10GBASE-X leaf-to-spine uplinks, this solution delivers low-latency connectivity and scalable bandwidth growth. Outcome: 40% reduction in east-west latency, seamless capacity expansion to 10-fold spine fabrics, and simplified port-density management under a unified Cisco IOS-XE platform.
For large enterprise campus networks requiring high availability and QoS assurance, the WS-C4928-10GE-CATALYST 4928 functions as a core aggregation switch. It consolidates departmental edge switches over 1GBASE-X SFP links and uplinks to distribution routers via dual 10GBASE-X SFP+ ports. Outcome: 99.999% network uptime with VRRP and HSRP support, streamlined multicast video distribution, and a 60% decrease in aggregated link oversubscription, all managed through Cisco DNA Center for enhanced policy enforcement.
In a multi-site SD-WAN deployment, the WS-C4928-10GE-CATALYST 4928 aggregates local LAN segments and connects to dual 10G Internet or MPLS circuits using 10GBASE-X SFP+ transceivers. Integrated 1GBASE-X SFP ports link PoE switches, IP phones, and security appliances at the branch edge. Outcome: 50% improvement in application performance via intelligent path selection, zero-touch provisioning with Cisco vManage, and a consolidated footprint that reduces rack space by 30%.
When maintaining the same optical connection format across existing sites, X2-10GB-LR supports a 10 km link over single-mode fiber. Match the remote interface, fiber type and required reach before treating a replacement chassis as interchangeable. Include the selected transceiver PID and link requirements on the purchase order.
When reproducing an older aggregation environment in a staging rack, the minimum Cisco IOS release is 12.2(46)SG. Confirm that the intended image meets that requirement and matches the production configuration. Record the image version, configuration baseline and required accessories before approving the chassis as a like-for-like spare.
When an existing aggregation node terminates many VLAN interfaces, the 2000-SVI ceiling becomes a purchase constraint distinct from physical interface density. Count active routed interfaces, include those retained for transition work, and compare the configuration total against that limit before specifying the chassis on the purchase order.
Built-in copper Ethernet access ports
WS-C4928-10GE has SFP traffic interfaces rather than built-in RJ-45 access ports. Its RJ-45 console and management connections are not substitutes for native copper endpoint connections.
Native 25G fiber connections
WS-C4928-10GE provides native 1G SFP interfaces. C9500-48Y4C supports native 1/10/25G connections and changes the interface density from 28 to 48 ports.
Hardware-forwarded IPv6 traffic
WS-C4928-10GE performs IPv6 switching in software rather than hardware. IPv6 capacity planning must therefore remain separate from the chassis's Ethernet hardware-forwarding figures.
More than two 10G uplinks
WS-C4928-10GE has two fixed 10G X2 interfaces and no removable port-expansion slots. Additional 10G connections cannot be added through an uplink card.
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| WS-C4928-10GE |  WS-C4900M |  WS-C4948E-F |  WS-X4993 |  WS-X4908-10GE | |
|---|---|---|---|---|---|
| Ethernet Technology | Gigabit Ethernet | 10 Gigabit Ethernet | Gigabit Ethernet | 10/100/1000 | 10 Gigabit Ethernet |
| Form Factor | Rack-Mount 1U | Rack-Mount 2U | Rack-Mount 1U | Rack-mount | Chassis |
| Manufacturer Part Number | WS-C4928-10GE | WS-C4900M | WS-C4948E-F | WS-X4993 | WS-X4908-10GE |
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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.
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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.
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Reviewed on the 9 February 2018
Good performance.
Reviewed on the 10 January 2018
Meets needs.
Reviewed on the 18 January 2023
Compact SFP based switch for aggregation.
Reviewed on the 15 June 2025
Stable 10G uplinks.
Reviewed on the 24 April 2025
Reliable platform.
WS-C4928-10GE identifies the Catalyst 4928 chassis: 4928 is the model designation, while 10GE refers to its 10 Gigabit Ethernet connections. The part number does not select a Cisco IOS feature tier or include a power supply, so those choices must be specified separately with the order.
WS-C4928-10GE is managed through Cisco IOS CLI using the serial console, Telnet or SSH with a cryptographic image. SNMP, Cisco Network Assistant and CiscoWorks CiscoView provide additional management paths. Confirm the selected image and management-tool compatibility before preparing the remote-access configuration and approving a replacement order.
No, WS-C4928-10GE does not supply PoE to endpoints; its traffic interfaces use SFP and X2 connections. Phones, wireless access points and other devices requiring power over copper Ethernet need a separate powered access layer. This chassis aggregates network links rather than replacing a powered endpoint-access switch.
WS-C4928-10GE accepts X2-10GB-SR and X2-10GB-LR in its fixed 10G X2 interfaces, along with the other supported X2 options. Match the selected transceiver to the remote interface, fiber type and distance. These interfaces are X2 cages, so an SFP+ optic is not a direct physical replacement.
The Catalyst 4928-10GE supports IP Base and Enterprise Services Cisco IOS images, including cryptographic options for SSH. IP Base provides static routing, RIPv1, RIPv2 and EIGRP Stub. Enterprise Services adds OSPF, IS-IS, EIGRP and BGP; specify the required image rather than assuming a feature tier from the chassis PID.
WS-C4928-10GE ships without a power supply, so order PWR-C49-300AC= or PWR-C49-300DC= for operation. PWR-C49-300AC/2 and PWR-C49-300DC/2 identify the redundant configuration options. Confirm the chosen power arrangement and the accessories included in the quotation before approving the chassis as a complete replacement order.
WS-C4928-10GE provides 96 Gbps switching capacity and 72 Mpps hardware forwarding for Layer 2 traffic. IPv6 switching is software-based rather than hardware-forwarded. Capacity planning should distinguish the Ethernet forwarding figures from IPv6 processing instead of assuming that every protocol follows the same hardware path through the chassis.
WS-C4928-10GE supports 32000 routing entries shared between unicast and multicast routes. That figure is one shared total, not an independent allocation for each traffic type. Routing features depend on the selected Cisco IOS image, so size the combined requirement and confirm the required protocols before ordering.
Yes, the Catalyst 4928-10GE is a 1U rack-mount switch. C4948-ACC-KIT= supplies spare rack-mount and cable-guide hardware, while C4948-BKT-KIT= provides front and rear mounting brackets. Confirm which mounting parts accompany the quoted condition and specify the required kit separately when the order does not include it.
Yes, WS-C4928-10GE reached end of sale on February 28, 2013, and its last date of support was February 28, 2018. Cisco service has ended. Any purchase is a legacy-hardware order, so keep continued operation and spare-unit planning separate from expectations of active Cisco hardware support.
ORM offers WS-C4928-10GE new sealed or certified refurbished, with up to a 3-year extended warranty for new units and up to 1 year for refurbished units. Returns are available for 30 days in either condition; terms apply. Cisco's original 1-year limited hardware warranty and service have ended.
C9500-48Y4C supports 25G on its fixed fiber interfaces, while WS-C4928-10GE uses 1G SFP interfaces. The older chassis preserves a legacy Gigabit connection layout. C9500-48Y4C is the current endpoint of the Catalyst 4500-X migration path for buyers requiring faster native fiber connections rather than an exact legacy replacement.
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