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N3K-C3432D-S
Cisco N3K-C3432D-S Nexus 3400-S 32-Port 400 Gigabit Switch,...
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N3K-C3432D-S is a managed, non-PoE data center switch with 32 fixed 400G QSFP-DD ports and two 1G SFP ports. The Nexus 3400-S uses NX-OS, with a default Layer 2 feature set rather than an included advanced-routing entitlement. Its fixed-port configuration has no removable uplink card to specify; the connection plan instead needs to cover link speed, cabling, and the remote interface. The Cisco Nexus 3432D-S occupies one rack unit and uses separate management connections for administration. For a purchase that must match existing equipment, retain the complete chassis identifier and distinguish the hardware configuration from separately selected software entitlements and connection items.
N3K-C3432D-S price for new stock is $16,853.55, a 75.6% saving from the Cisco list price of $69,052.00. N3K-C3432D-S refurb price is $13,097.70. N3K-C3432D-S is in stock and available for free next-day delivery. (terms applied)
Request bulk order quote for N3K-C3432D-S for additional pricing. Browse the full Cisco Nexus 3400 Switches series or explore all Cisco products.
25600 Gbps switching capacity provides aggregate bandwidth for the fixed-port configuration; wire-rate operation on all ports applies to packets greater than 200 bytes. Forwarding reaches 7200 Mpps at ingress and 10000 Mpps at egress, so these are distinct pipeline limits rather than interchangeable figures. N3K-C3432D-S carries 16 GB DRAM and 128 GB boot flash for its operating environment. A 70 MB dynamically allocated buffer accommodates traffic queues, while the hardware supports 120000 MAC entries. Administration includes CLI access and programmable interfaces; establish that access separately from the data-link connection schedule. 1240W maximum draw, compared with 626W typical operation, makes the maximum the relevant figure for electrical-capacity planning rather than the typical operating figure alone.
ORM Systems supplies N3K-C3432D-S in new sealed and certified refurbished condition; select the condition and confirm the power configuration, airflow direction, and mounting hardware before issuing the PO. Certified refurbished units are inspected and bench-tested for power-on and POST, every port linking at rated speed, clean boot, optics bay recognition, PSU status, and fan status; firmware is verified and configuration wiped to factory default. New units carry up to a 3-year extended ORM warranty, certified refurbished units up to 1 year, and every condition has 30-day returns; terms apply. For enterprise and volume orders, PO is accepted, government buyers receive Net-30, and RMA includes advance replacement across UK, EU, US, and MEA.
| Key Specs | Key Spec Values |
|---|---|
Operating System | NX-OS |
Port Configuration | 32 x 400G QSFP-DD / 2 x 1G SFP |
Max Power Draw | 1240W |
Cooling | 6 fans / 5+1 redundancy |
Lifecycle Status | End of sale September 1, 2025 |
Replacement PID | 8101-32FH-O |
When an existing fabric needs more 100G connections without another fixed chassis, breakout support reaches 128 ports of 100G. Treat the breakout layout as a separate ordering task rather than assuming every link uses the same assembly. Specify remote-interface speeds and the complete connection map before the PO.
When a replacement must fit an existing rack position, the mounting method matters alongside the chassis identifier. NXK-ACC-KIT-1RU is a supported rack-mount kit. Record the existing rack arrangement and required mounting hardware on the order, rather than leaving installation items implicit in a spare-chassis request.
RJ-45 endpoint access ports
N3K-C3432D-S has no RJ-45 data-access ports; its RJ-45 management interface serves administration. The fixed data connections use pluggable interfaces rather than copper endpoint-access sockets.
Continuing routine software maintenance
Routine software maintenance ended September 1, 2026. 8101-32FH-O is a migration option; confirm the required software environment and connections before substituting the hardware.
Mon–Fri: [09:00-16:00]
Avg. response under 30 mins
| N3K-C3432D-S |  N3K-C34180YC |  N3K-C3064TQ-32T |  N3K-C3172PQ-10GE |  N3K-C3132Q-40GE | |
|---|---|---|---|---|---|
| Depth | 645.1 mm | 571 mm | 570 mm | 432 mm | 505 mm |
| Ethernet Technology | 400 Gigabit Ethernet | 25 Gigabit Ethernet | 10 Gigabit Ethernet | 10 Gigabit Ethernet | 40 Gigabit Ethernet |
| Form Factor | Rack-Mount 1U | Rack-Mount 1U | Desktop | Rack-Mount 1U | Rack-Mount 1U |
| Height | 44.4 mm | 44 mm | 44 mm | 44 mm | 44 mm |
| Manufacturer Part Number | N3K-C3432D-S | N3K-C34180YC | N3K-C3064TQ-32T | N3K-C3172PQ-10GE | N3K-C3132Q-40GE |
| Switching Capacity | 25600 Gbps | 3600 Gbps | 1280 Gbps | 1400 Gbps | 2500 Gbps |
| Weight | 13.6 kg | 8.4 kg | 9.5 kg | 8.4 kg | 9.3 kg |
| Width | 439.1 mm | 439 mm | 439 mm | 439 mm | 439 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 90 days, for dependable protection on every order. The exact term is confirmed on your quote, order confirmation and invoice.
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
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.
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
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Reviewed on the 26 April 2022
QSFP DD ports enabled massive bandwidth.
Reviewed on the 6 March 2022
Excellent spine switch performance.
Reviewed on the 24 February 2018
Handles dense fabrics efficiently.
Reviewed on the 9 November 2020
Rock solid stability.
Reviewed on the 12 May 2020
Enterprise grade switching.
Reviewed on the 14 January 2019
QSFP DD ports enabled massive bandwidth.
Reviewed on the 13 October 2025
Excellent spine switch performance.
Reviewed on the 18 April 2022
Rock solid stability.
Reviewed on the 28 January 2021
Enterprise grade switching.
Reviewed on the 28 November 2025
Handles dense fabrics efficiently.
N3K-C3432D-S identifies the Nexus 3432D-S fixed switch with 32 QSFP-DD ports. Use the full identifier when matching a quotation to the required chassis, and keep software licenses and airflow-specific components on separate purchase-order lines. Retain the complete identifier rather than shortening it to a series name.
N3K-C3432D-S is managed through console CLI, SSHv2 or Telnet, DCNM, SNMP, NX-API, XML interfaces, and Python automation. Choose the administration method before staging, and specify access to the separate management interfaces rather than treating a front-panel data connection as the only control path.
N3K-C3432D-S is discontinued: Cisco sales ended September 1, 2025, and eligible support ends August 31, 2030. Software maintenance and new service attachment ended September 1, 2026. Specify remaining support requirements separately from hardware condition when preparing the purchase order; reseller availability does not reverse these milestones.
ORM Systems offers N3K-C3432D-S new sealed or certified refurbished: new units have up to a 3-year extended ORM warranty, and refurbished units up to 1 year. Cisco's platform warranty is 1-year limited hardware, bounded by August 31, 2030. Both conditions have 30-day returns; terms apply.
The Nexus 3432D-S supports Essentials subscriptions N3K-ES-XF2-3Y and N3K-ES-XF2-5Y, starting at three years, and Advantage perpetual license N3K-AD-XF2, which is not portable between devices. Legacy perpetual Essentials is discontinued. Select licensing separately from hardware condition; a software subscription term does not extend the hardware's last support date.
Yes, N3K-C3432D-S supports BGP with an appropriate advanced-routing entitlement, rather than its default Layer 2 feature set. Essentials subscription options are N3K-ES-XF2-3Y and N3K-ES-XF2-5Y. For a routed purchase, specify the required entitlement instead of using the chassis identifier alone to establish the software capabilities included with the order.
The Nexus 3400-S supports 128 100G ports through breakout. The connection schedule should identify the required breakout pattern, remote-interface speed, and matching cabling for each link. Specify those connection items separately on the PO rather than treating breakout capability as a complete cable bundle supplied with the chassis.
N3K-C3432D-S requires 200–240V AC for full 32-port 400G optic population with redundant NXA-PAC-1500W-PE or NXA-PAC-1500W-PI supplies. At 100–120V AC, redundant operation supports 19 such optics. Confirm circuit voltage and power-supply mode before ordering; a second installed supply does not remove this low-voltage limitation.
The Nexus 3432D-S is a 1U rack-mounted switch, and NXK-ACC-KIT-1RU is a supported mounting kit. Match the intended rack arrangement to the mounting hardware before issuing the order. Include the required kit by part number so a chassis-only quotation is not mistaken for a complete installation package.
N3K-C3432D-S supports port-side exhaust with NXA-FAN-35CFM-PE and NXA-PAC-1500W-PE, or port-side intake with NXA-FAN-35CFM-PI and NXA-PAC-1500W-PI. Select components with matching airflow direction and specify that direction on each hardware line. Keep replacement-component identifiers tied to the same rack airflow requirement rather than selecting components by wattage alone.
8101-32FH-O is a migration option for N3K-C3432D-S; Nexus 9300 is also a migration family. Treat migration as a new hardware selection rather than an interchangeable spare order. Confirm the required software environment and connection configuration before replacing the original chassis identifier on the purchase order.
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