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Arista

Arista QDD-8X25-MR-SR-E-Arista | 200G QSFP-DD Transceiver, Dual-Rate 8x25G/10G, MMF, 100m

QDD-8X25-MR-SR-E-Arista

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Description

The Arista QDD-8X25-MR-SR-E is a high-performance 200G QSFP-DD transceiver designed for data centre and campus deployments requiring ultra-low latency connectivity. This E-Series enhanced-performance module supports dual-rate operation at 8x25G or 8x10G over multi-mode fibre with an MPO-16 APC connector, reaching up to 100m on OM4 fibre. By eliminating the need for Forward Error Correction, it reduces latency by up to 250 nanoseconds, making it ideal for high-frequency trading, AI workloads, and real-time analytics environments.

Features

Dual-rate operation: 8x 25GBASE-SR or 8x 10GBASE-SR
- Enhanced optical performance (E-Series) for ultra-low latency
- FEC-optional design reduces latency by up to 250ns
- MPO-16 APC connector for parallel multi-mode fibre
- Hot-swappable QSFP-DD form factor
- Supports optical breakout to 8x individual 25G or 10G connections
- Digital Optical Monitoring (DOM) for real-time diagnostics
- 850nm VCSEL laser technology for cost-effective MMF deployments
- Compatible with all Arista QSFP-DD platforms
- Ideal for AI/ML, HFT, and latency-sensitive data centre applications
- Pull-tab ejector mechanism for easy installation and removal
- Commercial temperature range (0°C to 70°C)

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

Form Factor: QSFP-DD transceiver module
- Data Rate: Dual-rate, 8x 25G-SR or 8x 10G-SR
- Wavelength: 850nm VCSEL
- Connector Type: MPO-16 APC
- Fibre Type: Multi-mode fibre (MMF)
- Maximum Distance: 30m (OM3) / 50m (OM4) at 25G without FEC, 70m (OM3) / 100m (OM4) at 25G with FEC, up to 400m at 10G
- Enhanced Performance: E-Series low-latency, FEC-optional operation
- Hot-Pluggable: Yes
- Compliant Standards: MSA QSFP-DD, IEEE 802.3
- Temperature Range: Commercial (0°C to 70°C)
- Power Consumption: <3.5W (typical for QSFP-DD SR8 modules)
- Digital Diagnostics: DOM (Digital Optical Monitoring) support

FAQs

Q: What is the advantage of the E-Series designation on this transceiver?
A: The E-Series designation indicates enhanced optical performance that allows operation without Forward Error Correction (FEC), reducing latency by up to 250 nanoseconds. This makes it ideal for ultra-low latency applications such as high-frequency trading, AI/ML workloads, and real-time analytics.

Q: Can this transceiver operate in both 25G and 10G modes?
A: Yes, the QDD-8X25-MR-SR-E is dual-rate and supports both 8x 25GE (200G total) and 8x 10GE (80G total) operation. It can also be configured for 2x 100G breakout using the 8 lanes.

Q: Which Arista platforms support the QDD-8X25-MR-SR-E transceiver?
A: This transceiver is supported on all Arista QSFP-DD ports, including ultra-low latency platforms such as the 7130B Series and QSFP-DD ports on 7050X and 7060X platforms. Minimum EOS version 4.31.1 is required for full support.

Q: What fibre types and distances are supported?
A: The transceiver supports OM3 and OM4 multi-mode fibre. At 25G per lane, it reaches 30m/50m (OM3/OM4) without FEC for low latency, or 70m/100m (OM3/OM4) with FEC. At 10G per lane, it can reach up to 400m on OM4.

Q: Is this transceiver suitable for breakout cable applications?
A: Yes, the QDD-8X25-MR-SR-E supports optical breakout configurations, allowing you to split the 8 lanes into multiple lower-speed connections, such as 8x 25G or 8x 10G interfaces, providing flexible connectivity options for high-density deployments.

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