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Cisco

Cisco UCSX-CPU-I6421N | Xeon Gold 6421N | 32C/64T 1.8GHz | 185W | 60MB L3 | DDR5-4400 | LGA4677 | PCIe 5.0

SKU:UCSX-CPU-I6421N

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Description

4th Gen Intel Xeon Gold 6421N CPU for LGA4677 servers. Offers 32 cores/64 threads at 1.8 GHz base with 60 MB L3 cache and 185 W TDP. Supports 8-channel DDR5-4400 RDIMM and PCIe 5.0—ideal for scale-out, cloud-native, NFV, and analytics nodes on UCS X-Series.

Features

- 32 cores deliver excellent throughput for cloud-native and analytics workloads
- Efficient 185 W TDP with robust multi-socket scaling
- DDR5-4400 support for balanced memory bandwidth
- PCIe 5.0 readiness for high-speed I/O expansion
- Enterprise RAS and ECC for mission-critical uptime
- Optimized for UCS X-Series LGA4677 servers

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

Technical Specifications

- CPU model: Intel Xeon Gold 6421N
- Generation: 4th Gen Intel Xeon Scalable (Sapphire Rapids)
- Cores / threads: 32 / 64
- Base frequency: 1.8 GHz
- L3 cache: 60 MB
- Processor base power (TDP): 185 W
- Memory support: 8-channel DDR5-4400 RDIMM, ECC
- Socket: LGA4677
- I/O: PCIe 5.0 (up to 80 lanes)
- Platform compatibility: UCS X-Series LGA4677-based servers

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