• Silver-colored arista qdd-8x25-mr-sr-e 200g qsfp-dd transceiver modules with blue handles and metallic connectors
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Arista

Arista QDD-8X25-MR-SR-E | 200G QSFP-DD Transceiver, 8x25G/8x10G MMF SR, MPO-16

QDD-8X25-MR-SR-E

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Description

This Arista QSFP-DD E-Series transceiver is a dual-rate optic for low-latency 25G and 10G connectivity over short-reach parallel multimode fibre. It suits latency-sensitive data-centre links such as financial trading, and also works for breakout and fan-out between a QSFP-DD port and 25G or 10G endpoints.

It provides 8 lanes of 25GBASE-SR-Enhanced or 8 lanes of 10GBASE-SR at 850 nm over OM3 or OM4 parallel MMF, terminated with an MPO-16 APC connector. At 25G, FEC-free operation reaches 30m on OM3 and 50m on OM4 to keep latency low, while FEC-enabled mode extends reach to 70m and 100m. At 10G, reach is up to 300m on OM3 and 400m on OM4. The operating case temperature range is 0 to 70 C.

The module fits QSFP-DD ports on supported Arista platforms. The single-mode 2 km QDD-8X25-MR-LR is a related sibling for longer runs.

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

Features

- Enhanced-performance E-Series optic designed for low-latency operation
- 25G operation without FEC at short reach (30m/50m) to reduce latency
- FEC-enabled 25G mode extends reach to 70m on OM3 and 100m on OM4
- Dual-rate operation supports 10GBASE-SR at up to 300m on OM3 and 400m on OM4
- Parallel MMF with MPO-16 APC connector supporting 8 lanes
- QSFP-DD MSA and IEEE 802.3 compliant form factor

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 (E-Series)
- Interface: 8x 25GBASE-SR-E / 8x 10GBASE-SR (dual rate)
- Connector: MPO-16 APC
- Wavelength: 850 nm
- Cable type: OM3 / OM4 parallel multimode fibre
- Core size: 50.0 um
- Modal bandwidth: 2000 MHzkm (OM3) / 4700 MHzkm (OM4)
- 25G reach without FEC: 30m (OM3) / 50m (OM4)
- 25G reach with FEC: 70m (OM3) / 100m (OM4)
- 10G reach: 300m (OM3) / 400m (OM4)
- Tx power: -4.5 to 2.4 dBm at 25G; -6.8 to -0.5 dBm at 10G
- Rx power: -5.9 to 2.4 dBm without FEC at 25G; -10.3 to 2.4 dBm with FEC at 25G; -9.9 to -0.5 dBm at 10G
- Operating case temperature: 0 to 70 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 10,000 ft
- Standards: IEEE 802.3 Ethernet, QSFP-DD MSA

FAQs

Q: What fibre does this transceiver need?
A: It uses OM3 or OM4 parallel multimode fibre terminated with an MPO-16 APC connector. The 50 um core fibre carries 8 lanes at 850 nm.

Q: What reach can I expect at 25G?
A: Without FEC, 25G reach is 30m on OM3 and 50m on OM4, which keeps latency low. With FEC enabled, reach extends to 70m on OM3 and 100m on OM4.

Q: Can it run at 10G as well as 25G?
A: Yes. It is dual-rate and operates as 8x 10GBASE-SR, with reach of up to 300m on OM3 and 400m on OM4.

Q: What is the E-Series difference?
A: E-Series optics are tuned for low latency. At short reach the module runs 25G without FEC, avoiding the delay that FEC adds.

Q: Which ports does it fit?
A: It fits QSFP-DD ports on supported Arista platforms. The QDD-8X25-MR-LR is the single-mode 2 km sibling if you need longer reach.

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