• Silver-colored rack-mounted arista dcs-7812r4-fm network switch with grid ports and ventilation slots for 7812 chassis hot-swap
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Arista

Arista DCS-7812R4-FM | 7800R4 Fabric Module for 7812 Chassis, Hot-Swap

DCS-7812R4-FM

Stock Status: Enquire

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Description

The Arista DCS-7812R4-FM is a high-performance fabric module designed for the 7800R4 Series modular chassis platform. This hot-swappable fabric module is required for slots 1-5 in the DCS-7812 chassis and provides the critical backplane connectivity for high-bandwidth data center and AI spine deployments. With user-serviceable fans and graceful degradation support, it ensures reliable operation in demanding enterprise environments.

Features

Hot-swappable fabric module for zero-downtime maintenance
- Graceful degradation support for continued operation during partial failures
- Integrated cooling with 12 user-serviceable fan modules
- Front-to-rear airflow design optimized for data center hot/cold aisle deployments
- Supports 7800R4 high-bandwidth line cards including 800GbE OSFP interfaces
- Midplane-less architecture for direct line card to fabric connectivity
- Compatible with Arista EOS for unified system management
- Designed for AI spine, universal spine, and data center interconnect applications
- Supports EVPN/VXLAN gateway and Layer 2/3 stretch capabilities
- Enterprise-grade thermal management and power efficiency
- Qualified for 24x7 mission-critical data center operations
- Backward compatible chassis upgrade path from R3 to R4 specification

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

FAQs

Technical Specifications

Compatible Chassis: Arista DCS-7812 (Slots 1-5)
- Product Series: 7800R4 Universal Spine / AI Spine
- Dimensions (HxWxD): 2.5" x 31.6" x 23.7" (6.4 x 80.3 x 60.1 cm)
- Weight: 52.2 lbs (23.7 kg)
- Typical Power Consumption: 1150W
- Maximum Power Consumption: 1752W
- User Serviceable Fans: Yes (12 Fan Modules)
- Redundancy: Graceful degradation supported
- Airflow: Front-to-rear airflow optimized for data center
- Installation: Hot-swappable, rear-mounted fabric module
- Operating Temperature: 0°C to 40°C
- Management: Integrated with Arista EOS operating system

FAQs

Q: How many DCS-7812R4-FM modules are required for the 7812 chassis?
A: The DCS-7812 chassis requires five DCS-7812R4-FM fabric modules installed in slots 1-5 for full operational capacity. The system supports graceful degradation if fewer modules are installed, but all five are recommended for optimal performance and redundancy.

Q: What is the difference between R3 and R4 fabric modules?
A: The R4 fabric modules represent the latest generation with enhanced capabilities for AI spine and universal spine deployments. R4 modules support higher bandwidth line cards including 800GbE OSFP cards. Existing 7800R3 systems can be upgraded to R4 specification by installing R4 fabric modules and compatible line cards.

Q: Can the fans be replaced without removing the fabric module?
A: Yes, the DCS-7812R4-FM includes 12 user-serviceable fan modules that can be hot-swapped without powering down the chassis or removing the fabric module, minimizing service disruption in production environments.

Q: Is the DCS-7812R4-FM compatible with other 7800 chassis models?
A: No, the DCS-7812R4-FM is specifically designed for the DCS-7812 chassis. Other 7800R4 chassis models require their respective fabric modules: DCS-7816LR4-FM for 7816L, DCS-7808R4-FM for 7808, and DCS-7804R4-FM for 7804 chassis.

Q: What warranty does Arista provide for the fabric module?
A: The DCS-7812R4-FM is covered by Arista's standard one-year limited hardware warranty, which includes parts, repair, or replacement support for the fabric module and its integrated fan assemblies.

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