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Arista

Arista DCS-7500R3K-48Y4D-LC | 7500R3K 48x 25G SFP Line Card, 4x 400G QSFP-DD

DCS-7500R3K-48Y4D-LC

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Description

The 7500R3K line card is built for the Arista 7500 modular chassis (7504N, 7508N and 7512N). It pairs 48 SFP25 ports with 4 QSFP-DD 400G ports at wire speed, making it suited to high-density 25G server and leaf aggregation with 400G uplinks, as well as peering, data centre spine or core, and WAN edge roles where large routing tables matter.

Forwarding capacity is 2.8 Tbps at 1 Bpps, backed by a 4 GB packet buffer. As a 7500R3K large-route variant, it extends FlexRoute scale to over 5M routes. Breakout modes take a single card to as many as 80 x 10G or 25G interfaces, and 400G ports support 4x100G and 2x200G modes. Speed changes and breakouts are configured independently per port. Typical power draw is 290 W, maximum 350 W, excluding optics.

The card runs Arista EOS and works alongside other 7500R3 line cards in the same chassis. It needs a DCS-7500-SUP2 or SUP2-D supervisor and 7500R3 fabric modules (DCS-7504R3-FM, DCS-7508R3-FM or DCS-7512R3-FM). SFP25 ports accept 25G, 10G and 1G SFP modules, while QSFP-DD ports accept 400G modules and cables.

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

Features

- Single Jericho2C packet processor connected directly to all 48 SFP and 4 QSFP-DD ports
- FlexRoute Engine holds the full Internet routing table in hardware, scaling past 5M routes on the 7500R3K
- Accelerated sFlow at 25G, 100G and 400G with 1:500 sampling at wire speed
- Algorithmic ACLs for access control, policy-based forwarding and telemetry
- 400G QSFP-DD ports support 4x100G and 2x200G modes and breakouts
- Speed changes and breakouts configured independently per port
- Interoperates with other 7500R3 line cards in the same chassis
- Supports a wide range of 10G to 400G optics and cables

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: 48 x SFP25 + 4 x QSFP-DD
- Forwarding capacity: 2.8 Tbps
- Wire-speed performance: 1 Bpps
- Packet buffer: 4 GB
- Max 10G interfaces: 80
- Max 25G interfaces: 80
- Max 40G interfaces: 4
- Max 50G interfaces: 32
- Max 100G interfaces: 16
- Max 400G interfaces: 4
- Max total interfaces: 80
- Accelerated sFlow: Yes
- TCAM ACL entries (per chip): 24k
- ECMP: 512-way
- Typical (max) power: 290 W (350 W), excluding optics
- Weight: 7.6 kg (16.75 lbs)
- Dimensions (WxHxD): 44.5 x 4.5 x 58.4 cm (17.5 x 1.75 x 23 in)
- Chassis support: DCS-7504N, DCS-7508N, DCS-7512N
- Operating temperature (system): 0 to 40 C
- Storage temperature (system): -40 to 70 C
- Relative humidity (system): 5 to 90%
- Operating altitude (system): 0 to 3,000 m
- Certifications: FCC A, CE, UKCA, RCM, VCCI, KCC, BSMI, NRTL, TEC, ANATEL, ICASA, NOM

FAQs

Q: Which chassis does this line card fit?
A: It fits the Arista DCS-7504N, DCS-7508N and DCS-7512N chassis. The chassis needs a DCS-7500-SUP2 or SUP2-D supervisor and 7500R3 fabric modules.

Q: Does it require a software licence?
A: It runs Arista EOS. Optional chassis-level licences are available for advanced routing (LIC-MOD-1-E, -2-E and -3-E for OSPF, BGP, ISIS and PIM) and for virtualisation features (LIC-MOD-1-V for VM Tracer and VXLAN).

Q: What optics do the ports accept?
A: The SFP25 ports take 25G (SR, LR, MR-SR, MR-LR, MR-XSR, CR, AOC), 10G and 1G SFP modules. The QSFP-DD ports take 400G modules and cables such as SR8, DR4, XDR4, FR4, LR4, PLR4, ZR, AOC and CR8, plus 200G, 100G, 50G and 25G breakout modes.

Q: How does the 7500R3K differ from a standard 7500R3 line card?
A: The 7500R3K is the large-route variant, extending FlexRoute scale to over 5M routes, which suits internet-scale routing and large route table deployments.

Q: How much power does the line card draw?
A: Typical draw is 290 W and maximum is 350 W, excluding optics. It is powered from the chassis power supplies, which also supply cooling.

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