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CBS350-48XT-4X-NA
Cisco CBS350-48XT-4X-NA Business 350 48-Port 10 Gigabit Swit...
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CBS350-48XT-4X-NA provides 48 copper 10 Gigabit Ethernet ports and four 10G SFP+ uplinks in a managed Layer 2+ switch. The dedicated, fixed uplinks operate independently of the copper connections, without a removable network module. Part of the Cisco Business 350 Series, the non-PoE configuration connects separately powered servers, printers and other network devices in small-business networks. Its 1U rack-mount chassis accommodates higher-density copper installations. The discontinued CBS350-24XT-NA has 24 copper connections for lower-density existing installations. Copper interfaces also support 1G links for existing Gigabit devices. Guest VLAN and private VLAN controls separate traffic between users or workgroups. The Cisco Business family also supports browser-based network admission control for connected host devices.
CBS350-48XT-4X-NA price for new stock is $7,052.85. CBS350-48XT-4X-NA refurb price is $5,763.45. CBS350-48XT-4X-NA is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for CBS350-48XT-4X-NA for additional pricing. Browse the full Cisco CBS350 Business Switches series or explore all Cisco products.
1040 Gbps switching capacity provides nonblocking switching, while 755.81 Mpps forwarding handles the published 64-byte packet workload. Static routing supports 990 configured routes; RIP v2 provides dynamic route exchange, and PBR directs selected traffic toward next hops using access-control criteria. CBS350-48XT-4X-NA carries 512 MB of DRAM and 256 MB of flash for working memory and image storage, alongside a 10 MB packet buffer dynamically shared across ports. Hardware stacking combines four members into one managed system, with ring or chain layouts and active/standby stack control. Cross-stack link aggregation can span connections on multiple members. HTTP/HTTPS browser management, the local console, SSH/Telnet CLI, SNMP, Cisco Business Dashboard and the Cisco Business mobile app provide local and remote administration paths. 234.4W worst-case system consumption at 110V sets the maximum published AC allocation. Five fans provide active cooling, and the 0°C to 50°C operating range bounds the installation environment.
ORM Systems supplies CBS350-48XT-4X-NA new sealed or certified refurbished, with new orders carrying up to a 3-year extended warranty and certified refurbished orders up to 1 year, plus 30-day returns on every condition; terms apply. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, optics bay recognition, PSU status, fan status and clean boot; firmware is verified and configuration wiped to factory default. Specify the condition and quantity on the purchase order; Cisco's separate limited lifetime platform warranty is bounded by its last support date, October 31, 2029. For enterprise and volume orders, POs are accepted, Net-30 is available for government, and RMA includes advance replacement.
| 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 at 110V |
Cooling | 5 fans |
Replaces | SX350X-52-K9-NA / SX550X-52-K9-NA; end of sale July 30, 2022 |
Lifecycle Status | End of sale October 29, 2024; support ends October 31, 2029 |
When replacing discontinued SX350X-52-K9-NA or SX550X-52-K9-NA hardware, CBS350-48XT-4X-NA is the migration model for both predecessors, which reached end of sale on July 30, 2022. Build a port-by-port migration checklist and stage the replacement configuration, then specify the required connection media and quantity before issuing the purchase order.
When a branch needs local gateways for several workgroups, the switch supports 128 IP interfaces on physical ports, link aggregation groups, VLAN interfaces or loopback interfaces. Inventory the required gateways and address scopes before procurement, then check the interface count against the planned configuration before specifying the order.
When several offices must use one staging procedure, the switch supports CLI privilege levels 1, 7 and 15, plus text-editable configuration files that can be downloaded to another unit. Define the required operator access and site-specific settings, then attach the approved configuration template to the volume purchase order.
PoE delivery to connected endpoints
CBS350-48XT-4X-NA does not supply PoE on its copper ports, so connected phones, wireless access points or cameras cannot receive operating power from this switch.
Fanless operation in occupied rooms
CBS350-48XT-4X-NA uses five fans and produces 47.9 dB of acoustic noise at 25°C. The chassis is not fanless and cannot meet a zero-fan-noise requirement.
Continuing Cisco security software updates
CBS350-48XT-4X-NA reached the end of vulnerability/security support on October 29, 2025. Software maintenance ended the same day, and no migration product is available for this model.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| CBS350-48XT-4X-NA |  CBS350-12XT |  CBS350-48FP-4G |  CBS350-48P-4X |  CBS350-24S-4G-EU | |
|---|---|---|---|---|---|
| Depth | 450 mm | 203 mm | 350 mm | 350 mm | 203 mm |
| Ethernet Technology | 10 Gigabit Ethernet | 10 Gigabit Ethernet | Gigabit Ethernet | 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 | Rack-Mount 1U |
| Height | 44 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | CBS350-48XT-4X-NA | CBS350-12XT | CBS350-48FP-4G | CBS350-48P-4X | CBS350-24S-4G-EU |
| Memory | 512 MB | 512 MB | 512 MB | 512 MB | 512 MB |
| Power Consumption | 234.4W | 64.1W | 886.42W | 471.9W | 34.3W |
| Switching Capacity | 1040 Gbps | 240 Gbps | 104 Gbps | 176 Gbps | 56 Gbps |
| Weight | 7.29 kg | 2.93 kg. | 5.82 kg | 5.43 kg | 2.7 kg |
| Width | 440 mm | 440 mm | 445 mm | 445 mm | 440 mm |
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
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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CBS350-48XT-4X-NA identifies a Cisco Business 350 switch: CBS350 names the series, 48 denotes the copper port count, XT identifies 10 Gigabit copper, and 4X denotes four dedicated 10G SFP+ uplinks. NA is the regional suffix for the United States, Canada, Mexico, Colombia, Chile and the rest of Latin America.
CBS350-48XT-4X-NA is managed through an HTTP/HTTPS web UI, CLI over SSH or Telnet, the RJ-45 console, SNMP, Cisco Business Dashboard and the Cisco Business mobile app. An embedded Dashboard probe runs on the switch, eliminating a separate on-site probe host. Full and menu-based CLI modes are available.
CBS350-48XT-4X-NA is discontinued: end of sale was October 29, 2024, and the last date of support is October 31, 2029. Software maintenance and vulnerability/security support ended October 29, 2025. No migration product is available for this model, so remaining hardware support does not include continuing security software maintenance.
ORM Systems offers CBS350-48XT-4X-NA new sealed or certified refurbished, with new coverage up to a 3-year extended warranty and refurbished coverage up to 1 year. Returns are available for 30 days on every condition; terms apply. Cisco's separate limited lifetime platform warranty is bounded by October 31, 2029, its last support date.
CBS350-48XT-4X-NA replaces discontinued SX350X-52-K9-NA and SX550X-52-K9-NA. Both predecessors reached end of sale on July 30, 2022. CBS350-48XT-4X-NA is also discontinued, with end of sale on October 29, 2024, so the migration option is not a current Cisco production model.
No, CBS350-48XT-4X-NA does not provide PoE on its 48 copper ports. The copper interfaces support 1G and 10G data connections but do not deliver endpoint operating power. Connected phones, wireless access points and cameras therefore need separate power arrangements rather than a shared switch PoE budget.
The Cisco Business 350 48-port 10G copper switch supports SFP-10G-SR for multimode fiber and SFP-10G-LR for single-mode fiber. Its four dedicated SFP+ uplinks accept the selected transceivers separately from the copper connections. Order the required optics and matching fiber explicitly because transceivers are not included in the standard package.
Cisco Business 350 hardware stacking supports four members, and CBS350-48XT-4X-NA is a supported stacking model. Ring and chain layouts are available with active/standby stack control. The stack operates as one managed system, and cross-stack link aggregation can distribute an aggregate connection across ports on different members.
CBS350-48XT-4X-NA supports static routing, RIP v2 and PBR, with a published limit of 990 static routes and 128 IP interfaces. Interfaces can be configured on physical ports, link aggregation groups, VLAN interfaces or loopbacks. These routing capabilities place the switch in the Layer 2+ category rather than a full enterprise routing tier.
The Cisco Business 350 48-port 10G copper switch consumes 234.4W at 110V under worst-case conditions; the corresponding 220V figure is 229.2W. Its internal universal supply accepts 100-240V AC at 50-60Hz. Size the rack's AC allocation using the worst-case system figure rather than an endpoint-power budget.
CBS350-48XT-4X-NA provides 1040 Gbps switching capacity and 755.81 Mpps forwarding with 64-byte packets. The switch uses a 10 MB packet buffer dynamically shared across its ports. Working memory is 512 MB of DRAM, with 256 MB of flash for software and file storage.
The Cisco Business 350 Series supports guest VLANs, private VLANs and browser-based network admission control. Guest and business traffic can be separated, while private VLAN controls restrict communication between selected endpoints. DHCP snooping and Dynamic ARP Inspection add checks against unauthorized DHCP responses and inconsistent address bindings.
CBS350-48P-4X-NA provides PoE+ on 48 Gigabit copper ports, while CBS350-48XT-4X-NA provides no PoE on its 48 10G copper ports. Both models are discontinued. The powered model serves existing PoE endpoint connections; the nonpowered model serves separately powered devices requiring faster copper data links.
CBS350-48XT-4X-NA has 48 copper 10G connections, compared with 24 on CBS350-24XT-NA. Both models are discontinued. The higher-port-count model suits existing installations needing more copper connections in one chassis, while the 24-port model suits lower-density installations where the smaller connection count meets the requirement.
CBS350-48XT-4X-NA has four 10G SFP+ uplinks, whereas CBS350-48T-4G-NA has four 1G SFP uplinks. Both models are discontinued. The 10G-uplink model suits existing networks requiring faster aggregation connections; the 1G-uplink model suits installations maintaining Gigabit fiber connections without a requirement for 10G uplink speed.
United States
