• Silver-colored arista qsfp-100g-sr4-e transceiver modules with blue handles and metallic connectors for 100g mpo use
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Arista

Arista QSFP-100G-SR4-E | 100G QSFP28 SR4 Transceiver, E-Series, MPO-12, 30m/50m

QSFP-100G-SR4-E

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Description

This is the Arista Enhanced Performance (E-Series) 100GBASE-SR4 QSFP28 transceiver, built for latency-sensitive 100G Ethernet links over parallel multimode fibre. It suits data centres and trading or financial environments where removing FEC latency matters, as well as short-reach multimode connections between Arista switches.

The module uses four 25G NRZ lanes at 850nm with a standard MPO-12 UPC connector. Without FEC it reaches 30m over OM3 and 50m over OM4, which keeps link latency low. With FEC enabled the reach extends to 70m over OM3 and 100m over OM4. Maximum module power is 3.5W, and the operating case temperature range is 0 to 70 C. No licence or subscription is required.

It fits Arista switches with QSFP100 or QSFP28 ports running EOS 4.32.0 or later, and links to standard 100GBASE-SR4 optics over MPO-12 parallel multimode fibre. FEC must be enabled on a link if the far end is not an E-Series SR4 module or if the distance exceeds the no-FEC limits.

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

Features

- Enhanced optical performance allows 100G Ethernet links without FEC, removing FEC latency
- Designed for low-latency deployments
- Can operate with FEC enabled for extended reach of 70m/100m over OM3/OM4
- Hot-pluggable QSFP form factor for high-density 100G deployments
- Standard MPO-12 UPC parallel fibre interface
- Supports IEEE 802.3 and QSFP28 MSA standards

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

- PHY type: 100GBASE-SR4-E (100GBASE-SR4-Enhanced)
- Form factor: QSFP (QSFP100 / QSFP28)
- Connector type: MPO-12 UPC
- Wavelength: 850 nm
- Lanes: 4 x 25G NRZ
- Cable type: Parallel multimode fibre (MMF), OM3 and OM4
- Core size: 50.0 um
- Modal bandwidth: 2000 MHzkm (OM3) / 4700 MHzkm (OM4)
- Tx power: -4.5 to +2.4 dBm per lane
- Rx power: -5.9 to +2.4 dBm per lane without FEC, -10.3 to +2.4 dBm per lane with FEC
- Max reach without FEC: 30m (OM3) / 50m (OM4)
- Max reach with FEC: 70m (OM3) / 100m (OM4)
- Power consumption: 3.5 W max
- Dimensions (H x W x D): 13.5 x 18.4 x 72.4 mm
- 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
- Minimum EOS version: 4.32.0
- Standards compliance: IEEE 802.3 Ethernet; SFF-8449 and SFF-8636; GR-20-CORE; GR-326-CORE; GR-1435-CORE

FAQs

Q: Does this transceiver need a licence or subscription?
A: No. No licence or subscription is required for this module.

Q: What is the maximum reach with and without FEC?
A: Without FEC it reaches 30m over OM3 and 50m over OM4. With FEC enabled it reaches 70m over OM3 and 100m over OM4.

Q: How much power does it draw?
A: Maximum module power is 3.5W, drawn from the host QSFP port.

Q: Which switches and software does it work with?
A: It fits Arista switches with QSFP100 or QSFP28 ports and needs EOS 4.32.0 or later. The link partner must be 100GBASE-SR4 over MPO-12 parallel multimode fibre.

Q: How does the E-Series differ from a standard SR4 module?
A: The E-Series has enhanced optical performance that allows links without FEC, which removes FEC latency. FEC must be enabled if the far end is a non-E-Series SR4 module or the distance exceeds the no-FEC limits.

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