Cisco NXN-K3P-2X-4GB=
Nexus X25 2-port SFP28 SmartNIC (2-channel) KU3P FPGA 4GB
Key facts
- Part number
- NXN-K3P-2X-4GB=
- Brand
- Cisco
- Category
- Other
- Price
- AUD 6,726.95≈ USD 4,725 Reference price (RRP)
- Availability
- On request — ask for a quote
Overview
Nexus X25 2-port SFP28 SmartNIC (2-channel) KU3P FPGA 4GB
Ultra-low latency network interface card
The fastest network adapter we have built
The Cisco Nexus® X25 SmartNIC (K3P-S) is specifically optimized for low-latency operation.
Features software trigger-to-response latencies as low as 568ns. This is up to 20 percent faster than previous Cisco Nexus SmartNIC models, making it the fastest NIC we have built. Users will find that this drop-in replacement NIC accelerates tick-to-trade performance to previously unachievable speeds, increasing the efficacy and profitability of software-based trading systems.
Advanced software programmability
The Cisco Nexus X25 SmartNIC (K3P-S) provides the most powerful programmable software interface on the market.
Programmability features include:
- Zero-latency cost hardware flow steering, allowing users to steer and prefilter important traffic to the right memory and CPU core with no latency penalty.
- Cut-through receive, which allows software to process packet fragments as they arrive from the wire, while packet tails are still in flight. This is especially effective for slow line speeds (for example, 1GbE). The Cisco Nexus X25 SmartNIC (K3P-S) software API puts users well ahead of traditional store-and-forward NIC designs to make decisions faster.
- ExaSOCK TCP/IP acceleration: Unmodified socket applications can benefit from the speed and power of the Cisco Nexus X25 SmartNIC (K3P-S) using ExaSOCK. ExaSOCK is an in-place TCP/IP socket acceleration system. ExaSOCK's Extension API allows it to seamlessly interoperate with the Cisco Nexus X25 SmartNIC (K3P-S) transmit preloading feature.
- Pre-loaded packet transmit: The Cisco Nexus X25 SmartNIC (K3P-S) allows users to preload transmit frames, saving 60ns from the transmit path. The Cisco Nexus X25 SmartNIC (K3P-S) features enlarged packet transmit buffers allowing many more frames to be preloaded, leading to more versatile transmission choices.
- High-resolution timestamps: 4ns timestamps are applied to every received packet and the most recently transmitted packet. The Cisco Nexus X25 SmartNIC (K3P-S) also features out of the box support for IEEE1588 (PTP) and high-speed capture to disk using free and open-source exact-capture software.
25GbE ready
The Cisco Nexus X25 SmartNIC (K3P-S) is a pure FPGA-based network adapter that is 25GbE ready.
Field-programmable gate array (FPGA) network adapters extend the useful life of the device by allowing new features and speed enhancements to be downloaded into a device after deployment. For example, the Cisco Nexus X25 SmartNIC (K3P-S) will support 25G Ethernet speeds through a firmware update. This will reduce capital expenditure on difficult infrastructure upgrades.
All FPGA design
The Cisco Nexus X25 SmartNIC (K3P-S) is built using the latest generation Xilinx Ultrascale+ FPGA.
It optionally ships with 4GB of DDR4 memory for custom use. It is a compact adapter in a low-profile form- factor. Users can benefit from the pure FPGA design by offloading critical network processing functions directly into the NIC using our fast and powerful Firmware Development Kit (FDK), while maintaining the ease of use and administration of a production-grade network adapter.
- Enjoy superfast data transfer of up to 8000 MB/s with PCI Express 3.0 x8 card, between the network card and motherboards
- Supports optical fibre cable to span longer distances and provides data transmission rates par excellence between servers and network components
- Use this 25Gigabit Ethernet card to enjoy an affordable and power efficient solution for server connectivity
- For high bandwidth connectivity, add this efficient dual port 25gigabit ethernet card to your server or workstation
Specifications
General
- Expansion Slot Type
- SFP28
- Product Type
- 25Gigabit Ethernet Card
Manufacturer Website Address
- Manufacturer
- Cisco Systems, Inc
- Product Model
- X25
- Product Name
- Nexus X25 25Gigabit Ethernet Card
- Product Line
- Nexus
- Brand Name
- Cisco
- Total Number of Ports
- 2
- Media Type Supported
- Optical Fiber
- Network Technology
- 25GBase-CR
25GBase-SR
- Form Factor
- Plug-in Card
- Height
- 68 mm
- Width
- 117 mm
Reference price history
Recorded reference and list prices over time. Not Prology selling prices.
- Latest
- AUD 6,726.95≈ USD 4,725
- Oct 2026
- Lowest recorded
- AUD 6,726.95≈ USD 4,725
- Highest recorded
- AUD 6,726.95≈ USD 4,725
- Recorded
- 2026
- 1 price point
AUD 6,726.95 rrp, recorded
Buy or sell Cisco NXN-K3P-2X-4GB=
Buying Cisco
Looking to buy the Cisco NXN-K3P-2X-4GB=? Prology supplies new, refurbished and used Cisco in Australia and the United States. Send the part number and quantity for a firm price.
Selling Cisco
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- What is the Cisco NXN-K3P-2X-4GB=?
- The Cisco NXN-K3P-2X-4GB= is an IT hardware part from Cisco – Nexus X25 2-port SFP28 SmartNIC (2-channel) KU3P FPGA 4GB.
- How much does the Cisco NXN-K3P-2X-4GB= cost?
- The reference price on record is AUD 6,726.95 (Oct 2026). It is a reference figure, not a selling price — ask Prology for a firm quote.
- Where can I buy the Cisco NXN-K3P-2X-4GB=?
- It is not listed on the Prology store yet. Prology sources Cisco on request — request a quote and we reply with a firm price and lead time within 1 business day.
- Can I sell a used Cisco NXN-K3P-2X-4GB=?
- Yes. Prology buys used and surplus Cisco, including the NXN-K3P-2X-4GB=. Get an offer — sell outright or trade in against your next order.
Request a quote for NXN-K3P-2X-4GB=
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