• Silver-colored arista H-D400-4Q100-1M sfp+ transceiver modules with blue handles and metallic connectors for 400g active DAC
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Arista

Arista QSFP-40G-SR4-Arista | 40G QSFP+ SR4 Transceiver, MPO-12, 100m OM3/150m OM4

QSFP-40G-SR4-Arista

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Description

This 40GBASE-SR4 QSFP+ transceiver is a hot-swappable optic from the Arista 40G QSFP+ optics range. It carries 40 Gigabit Ethernet over parallel multi-mode fibre at 850nm using an MPO-12 UPC connector, making it a practical choice for short-reach links inside the data centre such as leaf-spine and top-of-rack uplinks.

Reach is up to 100m over OM3 and up to 150m over OM4 multi-mode fibre. Maximum power consumption is 1.5 W, drawn from the host switch port, and no licence or subscription is required. The module measures 13.5 x 18.4 x 72.4 mm and operates across a case temperature range of 0 to 70 C.

It is designed for Arista switches with QSFP+ ports and interoperates with IEEE 40GBASE-SR4 optics. Because the optic uses parallel fibre lanes, a 4x10G breakout is possible over MPO-12 cabling, allowing a gradual migration from 10G to 40G. MPO-12 UPC multi-mode cabling (OM3 or OM4) is required.

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

Features

- Hot swappable to maximise uptime and simplify serviceability
- Complies with IEEE 802.3 and MSA standards
- Parallel QSFP multi-mode optics allow flexible 4x10G breakout options
- Supports gradual migration from 10G to 40G
- Low power draw of 1.5 W maximum
- Flexible media and interface choice on a port-by-port basis

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: 40GBASE-SR4
- Form factor: QSFP+
- Connector type: MPO-12 UPC
- Wavelength: 850 nm
- Cable type: OM3 / OM4 parallel multi-mode fibre
- Core size: 50.0 um (OM3 and OM4)
- Modal bandwidth: 2000 MHzkm (OM3), 4700 MHzkm (OM4)
- Tx power: -7.6 to +2.4 dBm per lane
- Rx power: -9.5 to +2.4 dBm per lane
- Max reach: 100 m (OM3), 150 m (OM4)
- Power consumption (maximum): 1.5 W
- 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: 0-10,000 ft
- Standards compliance: IEEE 802.3 Ethernet; QSFP+ 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. It does not require a licence or subscription.

Q: What fibre and connector does it need?
A: It needs MPO-12 UPC multi-mode cabling, either OM3 for up to 100m or OM4 for up to 150m.

Q: How much power does it draw?
A: It draws a maximum of 1.5 W per module, supplied by the host switch port.

Q: Can it be used for a 4x10G breakout?
A: Yes. The parallel MPO-12 fibre allows a 4x10G breakout, which helps with gradual migration from 10G to 40G.

Q: Which switches is it designed for?
A: It is designed for Arista switches with QSFP+ ports and interoperates with IEEE 40GBASE-SR4 optics.

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