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CBS350-48XT-4X-UK
Cisco CBS350-48XT-4X-UK Business 350 48-Port 10 Gigabit Swit...
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CBS350-48XT-4X-UK combines 48 copper 10 Gigabit Ethernet connections with four dedicated 10G SFP+ uplinks in a managed, Layer 2+ rack switch. The fixed uplink architecture needs no removable network card, and the non-PoE copper ports connect independently powered equipment rather than supplying endpoint power. Within the Cisco Business 350 family, this configuration serves small-business networks connecting servers, workstations and shared network resources. The discontinued CBS350-48T-4X-UK has Gigabit copper access ports instead, making downlink speed the principal distinction between these configurations. Both copper and SFP+ connections support 1G operation where existing equipment has not moved to 10G. The full-width 1U chassis places this 48-port 10 Gigabit copper switch in a rack rather than treating it as a compact desktop model.
CBS350-48XT-4X-UK price for new stock is is available on request. Get immediate quote. CBS350-48XT-4X-UK refurb price is $5,773.95.
Request bulk order quote for CBS350-48XT-4X-UK for additional pricing. Browse the full Cisco CBS350 Business Switches series or explore all Cisco products.
1040 Gbps switching capacity supports nonblocking forwarding across the physical connections, while 755.81 Mpps forwarding performance specifies processing throughput for 64-byte packets. 990 static routes provide a bounded routing configuration; RIP v2 adds dynamic route exchange, and PBR selects next hops using traffic policies. Hardware stacking joins four members using 10G fiber connections, with active and standby stack control. CBS350-48XT-4X-UK carries 512 MB DRAM and 256 MB flash for operating software and stored files. A dynamically shared 10 MB packet buffer handles traffic across the ports rather than reserving that capacity for one connection. The MAC table holds 16000 entries, while STP, RSTP and MSTP provide spanning-tree options. Eight hardware queues provide traffic prioritization. 234.4W maximum system consumption belongs in UPS sizing, and five fans require an installation location that accommodates active cooling rather than silent desktop operation.
ORM Systems offers CBS350-48XT-4X-UK new sealed with up to a 3-year extended warranty, or certified refurbished with up to 1 year; Cisco's limited lifetime hardware warranty ends October 31, 2029. Refurbished units are inspected and bench-tested for power-on and POST, rated-speed links on every port, optics bay recognition, PSU and fan status, and clean boot; firmware is verified and configuration wiped to factory default. Specify condition, quantity and required optics on the PO; returns cover 30 days on every condition, terms apply. POs are accepted, Net-30 is available for government, and RMA with advance replacement supports enterprise and volume orders through UK, EU, US and MEA regional stock and RMA.
| Key Specs | Key Spec Values |
|---|---|
Port Configuration | 48 x 10G copper / 4 x 10G SFP+ |
Stacking | Hardware stacking / 4 members |
Max Power Draw | 234.4W |
Cooling | 5 fans |
Replaces | SX350X-52-K9-UK / SX550X-52-K9-UK; end-of-sale July 30, 2022. |
Lifecycle Status | End of sale October 29, 2024. |
An office adding separate IP networks needs to size gateway interfaces before purchasing access hardware. The Business 350 supports 128 IP interfaces, including physical, VLAN, link aggregation and loopback interfaces. Map the planned subnets and interface assignments, then confirm that the required configuration fits before issuing the PO.
A business standardizing administration across several locations can use the embedded Cisco Business Dashboard probe rather than placing a separate probe appliance or virtual machine at each site. For a CBS350-48XT-4X-UK rollout, identify the central management environment, site enrollment responsibilities and local administrative access before specifying the order.
A staging bench preparing switches before shipment can use the front USB Type-A interface for file and image management. CLI privilege levels 1, 7 and 15 separate administrative access. Define the staging files, authorized operator privileges and configuration handoff requirements before ordering units for a repeatable preparation process.
Switch-powered phones or access points
CBS350-48XT-4X-UK does not deliver PoE through its copper ports. Endpoints requiring power from the network cable cannot receive that power from this model.
Uplinks faster than 10G
CBS350-48XT-4X-UK has fixed 10G SFP+ uplinks and no removable uplink-card architecture. A requirement for faster uplink connections exceeds this model's connectivity.
Ongoing vendor security maintenance
CBS350-48XT-4X-UK reached the end of vulnerability and security support on October 29, 2025. Hardware support through October 31, 2029 does not extend software security maintenance.
Mon–Fri: [09:00-16:00]
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| CBS350-48XT-4X-UK |  CBS350-24XTS |  CBS350-12XT-EU |  CBS350-12XT-NA |  CBS350-16FP-2G-EU | |
|---|---|---|---|---|---|
| Depth | 450 mm | 350 mm | 203 mm | 203 mm | 308 mm |
| Ethernet Technology | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | Gigabit Ethernet |
| Flash Memory | 256 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U | Desktop |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS350-48XT-4X-UK | CBS350-24XTS | CBS350-12XT-EU | CBS350-12XT-NA | CBS350-16FP-2G-EU |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 234.4W | 80.2W | 64.1W | 64.1W | 284W |
| Switching Capacity | 1040 Gbps | 480 Gbps | 240 Gbps | 240 Gbps | 36 Gbps |
| Weight | 7.29 kg | 4.84 kg. | 2.93 kg | 2.93 kg | 2.49 kg. |
| Width | 440 mm | 440 mm | 440 mm | 440 mm | 268 mm |
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New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
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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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CBS350 identifies the Business 350 managed series, 48 identifies the copper-port count, XT identifies 10 Gigabit copper connectivity, 4X identifies four dedicated 10G SFP+ ports, and UK identifies the regional version of CBS350-48XT-4X-UK. That regional suffix covers the United Kingdom, Saudi Arabia, Qatar, Kuwait, Singapore, Hong Kong and Malaysia.
CBS350-48XT-4X-UK supports a web UI over HTTP/HTTPS, CLI through console, SSH or Telnet, SNMP, Cisco Business Dashboard and the Cisco Business mobile app. Remote CLI access requires an IP address and enabled services. The browser interface provides simple and advanced configuration modes for local administration.
Yes, CBS350-48XT-4X-UK reached end of sale on October 29, 2024. Software maintenance and vulnerability support ended October 29, 2025, while the last date of support is October 31, 2029. No migration product is named for this model, so remaining hardware support should not be confused with continuing security updates.
ORM Systems supplies CBS350-48XT-4X-UK new sealed or certified refurbished. Cisco's limited lifetime hardware warranty is bounded by October 31, 2029. ORM provides up to a 3-year extended warranty for new units and up to 1 year for certified refurbished units. Returns cover 30 days on every condition; terms apply.
No license or subscription is required for CBS350-48XT-4X-UK; software functionality is included with the hardware purchase. There is no software-tier selection or minimum subscription term to add to the order. Specify the hardware and required connection accessories rather than a separate license for the included switching features.
CBS350-48XT-4X-UK is the replacement for the discontinued SX350X-52-K9-UK and SX550X-52-K9-UK, which both reached end of sale on July 30, 2022. The replacement relationship does not make these generations compatible stack members. CBS350-48XT-4X-UK has itself subsequently reached end of sale, without a named migration product.
Yes, CBS350-48XT-4X-UK supports hardware stacking with four members, managed as one system. The Business 350 uses standard 10G fiber connections and supports ring or chain arrangements. Legacy Sx350 and Sx550 switches cannot join that stack, so an older installation requires a separate stack rather than a mixed-generation extension.
CBS350-48XT-4X-UK has non-PoE 10G copper connections, while CBS350-48P-4X-UK has Gigabit PoE+ connections. Both models are discontinued. The first configuration addresses independently powered equipment needing 10G copper access; the second addresses powered Gigabit endpoints. A PoE requirement therefore changes both endpoint power delivery and the available copper access speed.
CBS350-48XT-4X-UK provides 10G copper access, whereas CBS350-48T-4X-UK provides Gigabit copper access. Both are discontinued non-PoE configurations with four 10G SFP+ connections. Buyers retaining Gigabit endpoint interfaces would assess the latter configuration; buyers connecting equipment through 10G copper interfaces need the higher native access speed of CBS350-48XT-4X-UK.
CBS350-48XT-4X-UK provides 48 copper 10G connections, while CBS350-24XT-UK provides 24. Both models are discontinued. The smaller configuration also shares its SFP+ connections with copper ports, unlike the dedicated SFP+ connections on CBS350-48XT-4X-UK. Assess the smaller unit for fewer copper endpoints and the larger unit when higher copper density is required.
CBS350-48XT-4X-UK supports SFP-10G-SR for multimode fiber and SFP-10G-LR for single-mode fiber in its SFP+ connections. Select the optic against the installed fiber and required distance rather than the connector shape alone. Include the chosen transceiver part numbers on the purchase order; these connections do not require an uplink network card.
CBS350-48XT-4X-UK provides static routing, RIP v2 and PBR, with capacity for 990 static routes and 128 IP interfaces. PBR directs selected traffic toward specified next hops using access-control criteria. These functions are included with the hardware rather than unlocked through a separately purchased software tier.
United States
