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WS-C3750X-48T-S
Cisco WS-C3750X-48T-S Catalyst 3750-X 48-Port Gigabit Switch...
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WS-C3750X-48T-S provides managed Layer 3 enterprise access through 48 copper ports supporting 10/100/1000 Ethernet. The chassis has a modular uplink bay rather than fixed uplink ports, accommodating separately selected fiber or copper connections at 1G or 10G. IP Base is the included software feature set, and the full-width chassis occupies one rack unit. Access ports carry data without supplying endpoint power, so attached workstations and appliances require their own power arrangements. Within the Cisco Catalyst 3750-X Series, the discontinued WS-C3750X-48P-S differs by providing PoE+ access ports. The data-only configuration serves existing enterprise access networks where retaining the installed switch generation matters more than introducing powered endpoint connections or changing the hardware family.
WS-C3750X-48T-S price for new stock is $992.25, a 92.5% saving from the Cisco list price of $13,200.00. WS-C3750X-48T-S refurb price is $115.92. WS-C3750X-48T-S is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for WS-C3750X-48T-S for additional pricing. Browse the full Cisco 3750X Catalyst Switches series or explore all Cisco products.
160 Gbps switching capacity handles local traffic switching, while 101.2 Mpps forwarding applies to a configuration with two 10GbE uplinks installed. Static, RIPv1, RIPv2, RIPng, EIGRP Stub, and OSPF for routed access provide the included routing choices; full OSPF and BGPv4 are outside the installed feature tier. WS-C3750X-48T-S has 256 MB of DRAM and 64 MB of flash for runtime operation and software storage. SDM templates allocate forwarding resources differently: 11000 IPv4 routes are available with the routing template, while the VLAN template reaches 12000 MAC entries. Those maxima belong to different resource allocations and are not simultaneous limits. The Cisco Catalyst 3750-X supports RSTP and MSTP for loop control, plus LACP for negotiated link aggregation. Hardware MACsec supports encrypted access links, with uplink encryption dependent on the C3KX-SM-10G service module.
ORM offers WS-C3750X-48T-S in new sealed and certified refurbished condition, with up to a 3-year extended warranty on new units and up to 1 year on certified refurbished units; 30-day returns apply to every condition, with terms applying. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, clean boot, module bay recognition, and stack adapter negotiation; firmware is verified and configuration wiped to factory default. Cisco hardware warranty support ended October 31, 2021. Specify this switch's condition and accessory requirements on the purchase order; PO accepted, Net-30 for government, and RMA with advance replacement support enterprise and volume purchasing, with regional stock and RMA in the UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
License Tier | IP Base |
Port Configuration | 48 x 1G / modular 1G or 10G uplinks |
Stacking | StackWise Plus / nine members |
Replaces | WS-C3750E-48TD-S / WS-C3750E-48TD-SD / WS-C3750G-48TS-S; end-of-sale January 30, 2013 |
Lifecycle Status | Cisco support ended October 31, 2021 |
Replacement PID | C9300-48T-A via discontinued WS-C3850-48T-S |
In a 1,000-user enterprise environment, WS-C3750X-48T-S-TAA Catalyst 3750-X 48-port switch delivers 48 Gigabit access ports and StackWise scalability to connect desktops, wireless APs, and VoIP devices. Benefit: IP Base Layer 3 routing and QoS features ensure seamless traffic segmentation and low-latency voice, boosting operational efficiency and minimizing downtime.
Across a multi-building campus, the Catalyst 3750-X 48-port IP Base switch aggregates edge switches using SFP-based 10 Gbps uplinks and StackWise redundancy. Benefit: OSPF routing and VRF-Lite support enhance network resiliency, secure multi-tenant segmentation, and deliver consistent performance campus-wide.
In a distributed branch network, WS-C3750X-48T-S-TAA provides 48 Gigabit ports and IP Base services for static and EIGRP stub routing. Benefit: VRF-Lite and ACL enforcement isolate guest, POS, and corporate VLANs while fiber uplinks to headquarters improve security, simplify remote deployment, and optimize WAN utilization.
When an installed estate still uses WS-C3750G-48TS-S, WS-C3750E-48TD-S, or WS-C3750E-48TD-SD, this replacement addresses the matching legacy access-switch requirement. Those predecessors had different uplink arrangements, so a chassis-only order is not a complete migration bill of materials. Confirm the required uplink module and incoming power arrangement before releasing the PO.
When a test environment must reproduce first-hop redundancy before a production change, the Catalyst 3750-X Series supports 32 HSRP links per unit or stack. A staging order should mirror the installed feature tier rather than assume advanced routing comes with the chassis. Specify the required software entitlement and console-access arrangement before the PO.
When branches standardize installation contents, accessory completeness matters independently of hardware condition. C3KX-RACK-KIT= identifies the rack-mount kit, while CAB-3KX-AC= is the North American power cord. UK and EU installations use CAB-3KX-AC-UK= and CAB-3KX-AC-EU= respectively. Put the regional cord and mounting-kit requirements on each purchase order.
PoE power for attached endpoints
WS-C3750X-48T-S does not provide PoE output; a larger power supply cannot add powered ports. C9300-48P-A provides 48 PoE+ access ports with Network Advantage as a current alternative.
Current Cisco service eligibility
WS-C3750X-48T-S reached its last support date on October 31, 2021. C9300-48T-A is the current migration destination after the also-discontinued WS-C3850-48T-S.
Uplinks faster than 10G
WS-C3750X-48T-S accepts 1G or 10G network modules, not faster uplinks. Requirements above 10G exceed its uplink options; changing the software feature tier does not change that interface ceiling.
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| WS-C3750X-48T-S |  WS-C3750X-48U-L |  WS-C3750X-24U-L |  WS-C3750X-24U-E |  WS-C3750X-48U-E | |
|---|---|---|---|---|---|
| Depth | 460 mm | 495 mm | 495 mm | 495 mm | 495 mm |
| Ethernet Technology | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet | Gigabit Ethernet |
| Flash Memory | 64 MB | 64 MB | 64 MB | 64 MB | 64 MB |
| Form Factor | Rack-Mount 1U | 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 | 44.5 mm |
| Manufacturer Part Number | WS-C3750X-48T-S | WS-C3750X-48U-L | WS-C3750X-24U-L | WS-C3750X-24U-E | WS-C3750X-48U-E |
| Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Switching Capacity | 160 Gbps | 160 Gbps | 160 Gbps | 160 Gbps | 160 Gbps |
| Weight | 7.4 kg | 7.6 kg | 7.3 kg | 7.3 kg | 7.6 kg |
| Width | 445 mm | 445 mm | 445 mm | 445 mm | 445 mm |
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Reviewed on the 3 September 2020
48-port IP Base switch is reliable for high-density deployments.
Reviewed on the 10 June 2020
Handles multiple devices with stable throughput and minimal downtime.
Reviewed on the 25 August 2022
Easy to configure and integrates smoothly into enterprise networks.
Reviewed on the 24 September 2018
Compact design with Cisco reliability.
Reviewed on the 8 October 2024
Predictable performance for branch and campus networks.
WS-C3750X-48T-S identifies a Catalyst 3750-X stackable switch: WS-C3750X is the family prefix, 48 is the access-port count, T selects the 10/100/1000 data-port configuration, and S indicates IP Base. The configuration includes a C3KX-PWR-350WAC power supply. Uplink selection is separate rather than encoded as a fixed-uplink configuration in this PID.
The Catalyst 3750-X Series is managed through Cisco IOS CLI over the RJ-45 console, USB Type-B console, SSH, or Telnet, with SNMPv1, SNMPv2c, and SNMPv3 for monitoring. CiscoWorks LMS provides network management, and an out-of-band Ethernet management port separates administrative access. SSH and SNMPv3 require the cryptographic software image.
WS-C3750X-48T-S ended Cisco sales on October 30, 2016, and Cisco support on October 31, 2021. Its direct replacement, WS-C3850-48T-S, is also discontinued, with Cisco support ending October 31, 2025. The migration chain continues to C9300-48T-A; purchasing the older hardware is a legacy replacement decision, not a current-generation deployment.
ORM offers WS-C3750X-48T-S new sealed with up to a 3-year extended warranty, or certified refurbished with up to 1 year. Both conditions include 30-day returns; terms apply. Cisco's original enhanced limited lifetime hardware warranty support ended October 31, 2021. ORM coverage is separate from that ended Cisco coverage.
WS-C3750X-48T-S includes IP Base, while IP Services requires a separate entitlement activated through a local license file. Legacy upgrade paths are C3750X-48-IOS-S-E for factory activation, C3750X-48-S-E for a paper license, and L-C3750X-48-S-E for an electronic license. Confirm the installed entitlement separately from the hardware condition before ordering.
WS-C3750X-48T-S replaces WS-C3750G-48TS-S, WS-C3750E-48TD-S, and WS-C3750E-48TD-SD. All three predecessors ended Cisco sales on January 30, 2013. The earlier configurations used different uplink arrangements, and WS-C3750E-48TD-SD was DC-powered. Replacement planning must therefore confirm the uplink hardware and incoming power source separately from the matching access-port count.
No, WS-C3750X-48T-S supplies data connectivity but no PoE output on its access ports. Installing a higher-rated power supply does not add powered-port hardware. Phones, access points, and other powered endpoints need separate power arrangements, or a PoE-capable switch such as the current C9300-48P-A alternative.
WS-C3750X-48T-S accepts C3KX-NM-1G, C3KX-NM-10G, C3KX-NM-10GT, and C3KX-SM-10G; no uplink module is included by default. C3KX-NM-1G provides four Gigabit SFP interfaces, while C3KX-NM-10GT provides two 10GBASE-T interfaces. C3KX-NM-10G and C3KX-SM-10G support two 10GbE SFP+ interfaces. Select the module and compatible optics as separate order items.
Nine switches form a WS-C3750X-48T-S StackWise Plus stack, with 64 Gbps stack throughput. CAB-STACK-50CM=, CAB-STACK-1M=, and CAB-STACK-3M= provide data-stack connections. LAN Base members cannot mix with IP Base or IP Services members. StackPower is a separate arrangement limited to four switches, using CAB-SPWR-30CM= or CAB-SPWR-150CM=.
WS-C3750X-48T-S includes Static, RIPv1, RIPv2, RIPng, EIGRP Stub, and OSPF for routed access under IP Base. Full OSPF, EIGRP, BGPv4, IS-ISv4, PBR, and PIM require IP Services. The 11000-route hardware ceiling belongs to the routing SDM template and should not be treated as an entitlement to every routing protocol.
No, WS-C3750X-48T-S ships with one C3KX-PWR-350WAC power supply and an empty second supply bay. A second compatible supply must be specified separately for internal redundancy. C3KX-PWR-440WDC is an optional DC alternative, and the chassis also supports StackPower power sharing. Additional power capacity does not convert the access ports into PoE ports.
WS-C3750X-48P-S has 48 PoE+ ports with a shared 435W budget, whereas WS-C3750X-48T-S provides data-only access ports. Both models are discontinued. The T configuration fits separately powered endpoints in a retained legacy estate; the P configuration corresponds to endpoint-power requirements, with allocation constrained by its shared PoE budget.
WS-C3750X-48T-S includes IP Base, whereas WS-C3750X-48T-E includes IP Services on the same discontinued data-switch configuration. IP Services adds full OSPF, EIGRP, BGPv4, and IS-ISv4. The S variant suits retained IP Base requirements; the E variant corresponds to advanced routing requirements within an existing legacy hardware estate.
C9300-48T-A is the current migration destination, whereas WS-C3750X-48T-S is discontinued and reached its last Cisco support date on October 31, 2021. The intermediate replacement, WS-C3850-48T-S, is also discontinued. Retaining the older model addresses legacy sparing requirements; buyers requiring current Cisco hardware should specify C9300-48T-A.
WS-C3750X-48T-S draws 126W at 100% traffic with C3KX-NM-10G, or 161.61W with C3KX-SM-10G under the same traffic load. These figures describe specific uplink configurations, not a chassis without a module. Size electrical provisioning around the selected configuration; the C3KX-PWR-350WAC output rating is not measured switch consumption.
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