Arista DCS-7280DR3A-54-DC-F | 7280R3A 54-Port 400G QSFP-DD Switch, Dual DC, Front-to-Rear

SKU:DCS-7280DR3A-54-DC-F

Stock Status: Enquire

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Description

The Arista 7280R3A is a fixed 2RU data centre switch router for large-scale leaf/spine designs, Internet border and peering, carrier edge and core transport, and 400G ZR/DWDM data centre interconnect. This DCS-7280DR3A-54-DC-F variant provides 54x 400G QSFP-DD ports and runs Arista EOS, with the dual DC power and front-to-rear airflow suited to NEBS-oriented telco and DC-powered environments.

It delivers 21.6 Tbps (43.2 Tbps FDX) of throughput at 8.1 Bpps with latency from 3.8 us, backed by a 24 GB deep packet buffer using Virtual Output Queues per port. The 54 QSFP-DD ports break out to 216x 100G, 348x 50G or 348x 25/10G interfaces, and two additional OSFP-LS ports support dense 400G-ZR deployment. Two hot-swap PWR-3001 DC power supplies run in 1+1 redundancy, each accepting -48 to -60 VDC and delivering 3000 W at 94% efficiency. Four hot-swap fans provide N+1 front-to-rear cooling.

The switch accepts QSFP-DD, QSFP and OSFP optics from 10G to 400G. It sits in EOS Feature License Group 5, with optional LIC-FIX-5- licences for Enhanced L3, Virtualization, Monitoring and Automation, routing scale and encryption options. Minimum EOS is 4.29.1, and the platform is managed by CloudVision.

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

Features

- Up to 54 ports of wire-speed 400G in 2RU, with 100G, 50G, 25G and 10G breakout flexibility
- Ultra-deep 24 GB packet buffer with Virtual Output Queues per port to eliminate head-of-line blocking
- 400G ZR/ZR+ support, with dedicated OSFP-LS ports for dense 400G DWDM
- FlexRoute engine for Internet-scale routing
- Synchronous Ethernet and IEEE 1588 PTP precision timing
- EVPN-VXLAN, MLAG, ECMP, and a rich L2/L3 and MPLS/SR feature set
- Open programmability via eAPI, JSON-RPC and NETCONF, plus CloudVision, LANZ and ZTP
- Single 64-bit EOS binary image with Stateful Fault Repair

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

- Ports: 54 x 400G QSFP-DD
- OSFP-LS ports: 2 for dense 400G-ZR deployment
- Max 100G ports: 216
- Max 50G ports: 348
- Max 25/10G ports: 348
- Max 40G ports (using QSFP+): 54
- Throughput (FDX): 21.6 (43.2) Tbps
- Packets per second: 8.1 Bpps
- Latency: From 3.8 us
- Packet buffer memory: 24 GB
- CPU: Eight-core x86
- System memory: 64 GB
- SSD storage: 120 GB
- Management ports: 1 x 100/1000, 1 x RS-232 (RJ-45), 1 x USB
- Power supplies: 2 x PWR-3001 DC, hot-swap, 1+1 redundant
- DC input: -48 to -60 VDC
- PSU output power: 3000 W each, 94% efficiency
- Typical/max power draw: 933 W / 1715 W
- Fans: 4 x hot-swap, N+1 redundant (FAN-7012H)
- Airflow direction: Front to rear
- Form factor: 2RU
- Dimensions (W x H x D): 43.99 x 8.79 x 76.39 cm including handles
- Weight: 27.94 kg
- Operating temperature: 0 to 40 C
- Minimum EOS: 4.29.1

FAQs

Q: Does this switch need a licence?
A: It runs Arista EOS and sits in EOS Feature License Group 5. Optional LIC-FIX-5- licences add features such as Enhanced L3, Virtualization, Monitoring and Automation, routing scale and encryption. The minimum EOS release is 4.29.1.

Q: What power does the DC variant need?
A: It uses two hot-swap PWR-3001 DC power supplies in 1+1 redundancy. Each takes -48 to -60 VDC at up to 69 A max (-48 V) and delivers 3000 W. Typical draw is 933 W and maximum draw is 1715 W.

Q: Which optics and modules does it work with?
A: The ports accept QSFP-DD, QSFP and OSFP optics from 10G to 400G. The fan module is FAN-7012H-RED, and the NEBS ground extender for this model is KIT-GND-EXT-2RU.

Q: How does this SKU differ from other 7280R3A models?
A: This SKU is the 54x 400G QSFP-DD model with dual DC power supplies and front-to-rear airflow. It is the non-encryption R3A model, whereas the R3AM and R3AK variants provide encryption on all ports.

Q: Can it break out to lower speeds?
A: Yes. The 54 QSFP-DD ports support up to 216x 100G, 348x 50G or 348x 25/10G interfaces, and up to 54x 40G using QSFP+ optics.