• Silver-colored arista dcs-7388-16cd2 server rack with 16-port 100g 200g qsfp56 qsfp28 green-lit components
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Arista

Arista DCS-7388-16CD2 | 7388X5 16-Port 100G/200G QSFP56 Line Card, No MACsec

DCS-7388-16CD2

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Description

This line card is a 16-port 100G/200G interface module for the Arista 7388X5 series modular data centre switch chassis. It is aimed at high-density leaf and spine deployments in hyperscale cloud, AI/ML clusters and large data centre networks, where 100G and 200G port density is needed alongside 400G modules in the same chassis.

It provides 16 QSFP56 ports. Each port runs at 200G or 100G and also accepts existing QSFP28 100G optics and cables. Maximum port counts are 16 x 200G, 32 x 100G with breakout, 16 x 40G, 32 x 25G and 32 x 10G. This is the non-MACsec variant, so it differs from the DCS-7388-8D, which provides 8 x 400G QSFP-DD ports with MACsec, and the DCS-7388-8DR, which provides 8 x 400G QSFP-DD ports. The module draws a typical 2.2 W (maximum 4.4 W) from the chassis backplane, excluding transceivers, and delivers 3.2 Tbps per slot with no oversubscription to the switch card.

It is designed for the DCS-7388-CH chassis with the DCS-7388-SUP supervisor and DCS-7388X5-SC switch card, and requires EOS 4.29.1 or later. The line card itself needs no licence.

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

Features

- Mix-and-match interface modules in the 7388X5 chassis, with 100G, 200G and 400G options
- Each module connects directly to the switch card with no oversubscription
- Field-replaceable, hot-swappable design for simple maintenance
- Supports the existing 100G QSFP28 optics and cables ecosystem alongside 200G QSFP56
- Runs Arista EOS, with CloudVision, ZTP, LANZ, DANZ and sFlow support at system level
- System-level latency from 825 ns with a shared 114 MB packet buffer

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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specs-tabs

Technical Specifications

FAQs

Technical Specifications

- Ports: 16 x QSFP56 (100G/200G, accepts QSFP28 100G optics and cables)
- Max 400G: Not supported
- Max 200G: 16
- Max 100G: 32 (may require breakouts)
- Max 40G: 16
- Max 25G: 32
- Max 10G: 32
- MACsec encryption: No
- Per-slot capacity: 3.2 Tbps, no oversubscription to the switch card
- Typical (max) power: 2.2 W (4.4 W)
- Supported chassis: DCS-7388-CH
- Minimum EOS: 4.29.1
- Dimensions (H x W x D, excluding ejector): 16.9 x 4.95 x 10.7 cm
- Weight: 0.90 kg
- Operating temperature (system): 0 to 40 C
- Storage temperature (system): -40 to 70 C
- Relative humidity (system): 5 to 95%
- Operating altitude (system): 0 to 3,000 m

FAQs

Q: Does this line card need a licence?
A: No, the line card itself needs no licence. Feature licensing applies at the chassis level, using Arista EOS Group 4 fixed-switch licences such as LIC-FIX-4-E. The MACsec licence LIC-FIX-4-MACSEC applies only to MACsec-capable modules, and this one is not.

Q: Which chassis and software does it work with?
A: It is for the DCS-7388-CH chassis, which has 8 line card slots, together with the DCS-7388-SUP supervisor and DCS-7388X5-SC switch card. It requires EOS 4.29.1 or later.

Q: What power does it need?
A: It is powered from the chassis backplane, drawing a typical 2.2 W and a maximum of 4.4 W excluding transceivers. The chassis takes up to 4 x 2400 W AC or DC power supplies (PWR-2421-HV-RED or PWR-2411-DC-RED) in N+N redundancy.

Q: Can it run existing 100G QSFP28 optics?
A: Yes. The QSFP56 ports accept QSFP28 100G optics and cables as well as 200G QSFP56. Speeds of 40G, 25G and 10G are available via breakout or adapters.

Q: How does it differ from the DCS-7388-8D and DCS-7388-8DR?
A: This module provides 16 x QSFP56 ports at 100G/200G without MACsec. The DCS-7388-8D provides 8 x 400G QSFP-DD ports with MACsec, and the DCS-7388-8DR provides 8 x 400G QSFP-DD ports.

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