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Arista

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

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

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Description

This Arista E-Series optic is a dual-rate QSFP-DD multimode transceiver with an MPO-16 APC connector, built for low-latency switching such as financial trading and for short-reach 200G, 2x 100G-4 or 8x 10G connections over parallel multimode fibre. It is supported on Arista QSFP-DD ports, including the ultra-low-latency 7130B and the QSFP-DD ports on 7050X and 7060X platforms.

The module runs 8x 25GBASE-SR-Enhanced or 8x 10GBASE-SR lanes at 850 nm over 50 um OM3 or OM4 fibre. The Enhanced mode lets 25G run without FEC to cut latency, reaching 30 m on OM3 and 50 m on OM4. With FEC enabled, 25G reaches 70 m on OM3 and 100 m on OM4. At 10G it reaches 300 m on OM3 and 400 m on OM4.

At 25G it interoperates with Arista SFP-25G-SR-E and QSFP-100G-SR4-E optics as well as SFP-25G-SR, SFP-25G-MR-SR, SFP-25G-MR-XSR, QSFP-100G-SR4 and QSFP-100G-XSR4. It needs MPO-16 APC multimode cabling and is hot swappable.

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

Features

- Dual-rate operation: 8x 25GE (or 2x 100G-4) or 8x 10GE
- Enhanced performance lets 25G run without FEC for low latency
- E-Series design cuts serialisation delay 2.5x compared with 10GE, with no added FEC latency
- Supported on all Arista QSFP-DD ports, including the 7130B, 7050X and 7060X platforms
- Hot swappable
- Interoperates at 25G with SFP-25G-SR-E and QSFP-100G-SR4-E E-Series optics

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 (Type 1 or 2)
- PHY type: 8x 25GBASE-SR-E / 8x 10GBASE-SR dual-rate
- Connector: MPO-16 APC
- Wavelength: 850 nm
- Fibre: OM3 / OM4 parallel multimode, 50 um core
- Modal bandwidth: 2000 MHzkm (OM3) / 4700 MHzkm (OM4)
- 25G reach without FEC: 30 m (OM3) / 50 m (OM4)
- 25G reach with FEC: 70 m (OM3) / 100 m (OM4)
- 10G reach: 300 m (OM3) / 400 m (OM4)
- Tx power: -4.5 to 2.4 dBm @ 25G; -6.8 to -0.5 dBm @ 10G
- Rx power: -5.9 to 2.4 dBm w/o FEC @ 25G; -10.3 to 2.4 dBm w/ FEC @ 25G; -9.9 to -0.5 dBm @ 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

FAQs

Q: What cabling does this transceiver need?
A: It uses an MPO-16 APC connector and parallel multimode fibre. OM3 and OM4 50 um cabling are both supported, with OM4 giving the longer reach.

Q: What is the maximum reach at 25G?
A: Without FEC it reaches 30 m on OM3 and 50 m on OM4. With FEC enabled it reaches 70 m on OM3 and 100 m on OM4.

Q: Which Arista platforms support it?
A: It is supported on all Arista QSFP-DD ports, including the ultra-low-latency 7130B series and the QSFP-DD ports on 7050X and 7060X platforms.

Q: What can it interoperate with at 25G?
A: At 25G it interoperates with SFP-25G-SR-E and QSFP-100G-SR4-E E-Series optics, as well as SFP-25G-SR, SFP-25G-MR-SR, SFP-25G-MR-XSR, QSFP-100G-SR4 and QSFP-100G-XSR4.

Q: Does it also run at 10G?
A: Yes. It is dual-rate and can run 8x 10GBASE-SR lanes, reaching 300 m on OM3 or 400 m on OM4.

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