• A sleek silver arista dcs-7368x4-sc-f switch card with multiple vertical slots for network switches in a server rack
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Arista

Arista DCS-7368X4-SC-R | 7368X4 12.8 Tbps Switch Card, Rear-to-Front Airflow

DCS-7368X4-SC-R

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Description

The Arista 7368X4 switch card is the central switching element of the 7368X4 modular data centre system. It carries a single 12.8 Tbps packet processor connected to all 8 I/O module slots in the DCS-7368-CH chassis, making it suited to hyperscale cloud, AI/ML, big data and I/O-intensive leaf or spine deployments that need high-density 100G and 400G with an upgrade path.

This -R variant includes fans and uses rear-to-front airflow. The card delivers up to 8 Bpps with latency from 700 ns and a 64 MB dynamic shared packet buffer, with 3.2 Tbps connected to each of the 8 I/O module slots. In the chassis it supports up to 128 x 100G or 32 x 400G ports through I/O modules. Typical power draw is 204 W, with a 364 W maximum, and it runs Arista EOS 4.22.0 or later.

It works only with the DCS-7368-CH chassis, alongside the DCS-7368-SUP or DCS-7368-SUP-D supervisor and I/O modules DCS-7368-16S, DCS-7368-16C, DCS-7368-4D, DCS-7368-4P and DCS-7358-16C. Airflow direction must match the other chassis components, so pair this rear-to-front card with rear-to-front power supplies and fans.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Single 12.8 Tbps packet processor in a 4RU modular system
- Fully connected to 8 I/O module slots with no oversubscription
- Supports mixed I/O modules: 16x25G SFP28, 16x100G QSFP28, 4x400G QSFP-DD and 4x400G OSFP
- Rear-removable switch card, power supplies and fans, so interface modules and cabling are not disrupted
- Hot-swap I/O modules, N+N power supplies and N+1 fans in the chassis
- Runs Arista EOS with CloudVision, ZTP, LANZ, sFlow and DANZ mirroring
- 128-way ECMP, dynamic load balancing and advanced congestion management for AI/ML and NVMe workloads
- Wire-speed L2/L3 forwarding with MLAG, VRF, BGP, OSPF, IS-IS and PIM

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

- Model: DCS-7368X4-SC
- Product type: Switch card for the 7368 modular chassis
- Maximum throughput: 12.8 Tbps / 8 Bpps
- Packet buffer memory: 64 MB (dynamic buffer allocation)
- Latency: 700 ns
- Bandwidth per I/O module slot: 3.2 Tbps across 8 slots
- Chassis port capacity: up to 128 x 100G or 32 x 400G via I/O modules
- Airflow: rear to front, fans included
- Typical/max power draw: 204 W / 364 W
- Dimensions (HxWxD): 4.8 x 17.0 x 16.4 in (12.2 x 43.2 x 41.6 cm)
- Weight: 28.0 lbs (12.73 kg)
- Chassis support: DCS-7368-CH
- Minimum EOS: 4.22.0
- Operating temperature: 0 to 40 C (32 to 104 F)
- Storage temperature: -40 to 70 C (-40 to 158 F)
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 3,000 m (10,000 ft)
- Compliance: FCC Class A, ICES-003, EN 55032, EN 55035, EN 62368-1, IEC 62368-1
- Certifications: BSMI, CE, KCC, NRTL, RCM, UKCA, VCCI

FAQs

Q: Which chassis does this switch card fit?
A: It is designed only for the Arista DCS-7368-CH chassis and requires EOS 4.22.0 or later. It works with the DCS-7368-SUP or DCS-7368-SUP-D supervisor.

Q: Which I/O modules can it drive?
A: It supports DCS-7368-16S, DCS-7368-16C, DCS-7368-4D, DCS-7368-4P and DCS-7358-16C modules, with 3.2 Tbps connected to each of the 8 slots.

Q: What airflow does this -R variant use?
A: It uses rear-to-front airflow and includes fans. Match it with rear-to-front power supplies and fans, as the -F variant is front-to-rear. Reversible airflow applies to the 25G and 100G modules only, while 400G modules are front-to-rear only.

Q: What power does it need?
A: The card draws 204 W typical and 364 W maximum. The chassis takes up to 4 hot-swappable N+N power supplies, either PWR-1900AC-F/R at 1900 W AC or PWR-1900-DC-F/R at 1900 W DC.

Q: What optics and cables are supported?
A: Through the I/O modules it supports 10G, 25G, 40G, 100G, 200G and 400G optics and DACs, as listed in the Arista datasheet.

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