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N5K-C5648Q
Cisco N5K-C5648Q Nexus 5600 24-Port 40 Gigabit Chassis Switc...
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N5K-C5648Q is a Nexus 5600 data center switch with 24 fixed 40G QSFP+ ports in a 2U chassis. Two expansion bays accept N5600-M12Q modules, but neither module is included with the base chassis. The optical interfaces serve server connections and fabric links rather than powered copper endpoints. NX-OS provides the operating environment, with Layer 3 functionality dependent on the installed feature entitlements. Specify the required interface population separately from the chassis so that an expanded configuration is not mistaken for the base unit.
N5K-C5648Q price for new stock is $2,221.79. N5K-C5648Q refurb price is $411.09. N5K-C5648Q is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for N5K-C5648Q for additional pricing. Browse the full Cisco Nexus 5600 Switches series or explore all Cisco products.
3840 Gbps maximum switching capacity and 2856 Mpps forwarding support the fully expanded hardware configuration; those figures do not mean expansion modules are installed. N5K-C5648Q shares a 25 MB packet buffer across each group of three 40G interfaces. The hardware supports a combined pool of 256000 MAC and ARP entries, rather than separate tables of that size. Management includes console access, SSHv2, Telnet, SNMP and XML NETCONF, with Cisco Prime DCNM providing centralized graphical administration. Confirm installed routing entitlements before treating hardware capability as an enabled software feature.
Specify N5K-C5648Q in new sealed or certified refurbished condition, and include the required accessories on the purchase order. Certified refurbished units are inspected and bench-tested for power-on and POST, rated-speed port links, clean boot, optics bay recognition, module bay recognition, PSU status and fan status; firmware is verified and the configuration is wiped to factory default. New units carry up to a 3-year extended warranty, certified refurbished units up to 1 year, with 30-day returns on every condition, terms apply. Enterprise and volume orders are accepted by PO, with Net-30 for government and RMA with advance replacement.
| Key Specs | Key Spec Values |
|---|---|
Operating System | NX-OS |
Port Configuration | 24 x 40G QSFP+ |
Max Power Draw | 1600W |
Cooling | 3 N5K-C5648-FAN / N5K-C5648-FAN-B modules |
Lifecycle Status | Cisco support ended September 30, 2025 |
Replacement PID | N9K-C9364C-GX |
When retaining 10G server interfaces during a fabric change, the QSFP-4SFP10G-CU1M provides a 1 m QSFP+ to four-SFP+ breakout connection. Build the cable schedule around actual server locations and connector types rather than the chassis port count alone; specify cable quantities and lengths before the PO.
When replacing an existing chassis in a populated rack, all power and fan modules must use the same airflow direction. Record whether the installation needs port-side intake or exhaust, then match the replacement assembly to that requirement. Confirm the complete airflow configuration before releasing the PO.
Native 100G fabric connections
The fixed interfaces and N5600-M12Q expansion modules stop at 40G. N9K-C9364C-GX provides 64 ports supporting 40G or 100G, with a materially higher port count.
Continuing Cisco service coverage
Cisco service for this chassis ended September 30, 2025. N9K-C9364C-GX is the current migration endpoint; assess its configuration and service entitlement separately.
Mon–Fri: [09:00-16:00]
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| N5K-C5648Q |  N5K-C56128P |  N5K-C5672UP-BUN |  N5K-C5672UP-B-LAB |  N5K-C5672UP | |
|---|---|---|---|---|---|
| Depth | 762 mm. | 762 mm | 762 mm | 762 mm | 762 mm |
| Ethernet Technology | 40 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet |
| Form Factor | Chassis | Rack-Mount 2U | Rack-Mount 1U | Rack-Mount 1U | Rack-Mount 1U |
| Height | 89 mm | 88 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | N5K-C5648Q | N5K-C56128P | N5K-C5672UP-BUN | N5K-C5672UP-B-LAB | N5K-C5672UP |
| Power Consumption | 1600W maximum. | 880W | 450W | 450W | 450W |
| Switching Capacity | 3840 Gbps | 2560 Gbps | 1440 Gbps | 1440 Gbps | 1440 Gbps |
| Width | 439 mm | 439 mm | 439 mm | 439 mm | 439 mm |
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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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N5K-C5648Q identifies the Nexus 5648Q base chassis with no GEM installed. The complete identifier distinguishes that chassis from expanded bundles; the number is not an as-shipped count of populated interfaces. Specify any required N5600-M12Q expansion modules separately rather than assuming that every supported interface is present.
N5K-C5648Q supports console CLI, SSHv2, Telnet, in-band management, a dedicated management interface, SNMP and XML NETCONF. Graphical management options include Cisco Prime DCNM, Cisco Fabric Manager and CiscoWorks LMS. Select the access method and monitoring integrations before staging, and align enabled services with the organization's management policy.
N5K-C5648Q is discontinued: end of sale was September 9, 2020, and Cisco support ended September 30, 2025. Security support also ended on that final support date. Treat a purchase as continued operation of retired hardware, not as a way to obtain a new Cisco-supported deployment.
ORM Systems offers N5K-C5648Q new sealed or certified refurbished, with up to a 3-year extended warranty on new units and up to 1 year on refurbished units. Both conditions have 30-day returns, terms apply. Cisco's original 1-year limited hardware warranty and Cisco service ended September 30, 2025.
The Nexus 5600 supports individual feature licenses and Cisco ONE software suites. N56-BAS1K9 covers Layer 3 Base, N56-LAN1K9 covers Layer 3 Enterprise, and N5648Q-EL2-SSK9 enables FabricPath. Review the existing entitlement inventory separately from the chassis order instead of assuming that replacement hardware includes every previously enabled feature.
N5K-C5648Q has 24 fixed 40G interfaces and supports 48 when both expansion bays contain N5600-M12Q modules. The base chassis does not include those modules. Count installed modules and usable optical connections when matching an existing configuration, and identify the required population explicitly on the purchase order.
The Nexus 5648Q has 1000W typical operating consumption and 1600W maximum consumption. Use the maximum when assessing the chassis allocation rather than substituting an individual power supply's output rating. Confirm the selected input type, feed arrangement and complete power assembly before approving the installation or replacement order.
N5648-B-36Q includes one N5600-M12Q expansion module and 36 40G interfaces, whereas N5K-C5648Q supplies the base 24-interface chassis without that module. Both are discontinued. The distinction matters when matching an existing expanded assembly: identify whether the replacement requirement covers only the chassis or the additional populated interfaces.
N5K-C5648Q ships with four power supplies for 2+2 redundancy, while N5K-C5624Q ships with two for 1+1 redundancy. Both models are discontinued. An existing installation built around the larger power assembly requires the former configuration; a replacement for the smaller assembly must match the latter rather than its family name alone.
N9K-C9364C-GX supports 40G and 100G connections, while N5K-C5648Q is limited to 40G interfaces. The newer chassis also has 64 ports, so the migration changes density as well as speed. Retained 40G configurations and new 100G requirements therefore need different interface and cabling assessments before an order is finalized.
N5K-C5648Q routing depends on the installed license: N56-BAS1K9 limits OSPF to 256 dynamically learned routes, while N56-LAN1K9 adds enterprise routing features including BGP and full EIGRP. Verify the required protocol and entitlement together before accepting a replacement; chassis identity alone does not establish the enabled routing configuration.
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