• 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 H-O400-4Q100-3M-Arista | 400G OSFP to 4x 100G QSFP28 Active Copper Breakout Cable, 3m

H-O400-4Q100-3M-Arista

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Description

This 3 metre active copper breakout cable from the Arista Optics Modules and Cables range connects one 400G OSFP port to four 100G QSFP ports. It suits high-density data centre builds where a 400G OSFP switch port needs to feed 100G servers, storage or switches over short distances of up to 3 metres.

The cable runs 400GBASE-CR8 on the OSFP end, using 8x 50G PAM-4 electrical lanes, and splits to 4x 100GBASE-CR4 on the QSFP ends, each with 4x 25G NRZ lanes. A gearbox in the QSFP end converts 2x 50G PAM-4 lanes to 4x 25G NRZ lanes. Maximum power draw is 10 W at the OSFP end and 4 W at each QSFP end.

The OSFP connector plugs into Arista OSFP 400G ports, and each of the four QSFP connectors plugs into a QSFP100 port. A QSFP-DD equivalent exists for QSFP-DD switch ports as part H-D400-4Q100-xM.

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

Features

- Connects one 400G OSFP port to four 100G QSFP ports
- Active copper design with gearbox for PAM-4 to NRZ lane conversion
- Hot swappable to maximise uptime and simplify serviceability
- Complies with industry standards
- Low power draw of 10 W at the OSFP end and 4 W per QSFP end maximum
- Suited to short-reach breakout in high-density data centre racks

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

- Product number: H-O400-4Q100-3M
- PHY type: 400GBASE-CR8 to 4x 100GBASE-CR4
- Connector type: OSFP to 4x QSFP
- Cable type: Active Copper Cable (Twinax)
- Length: 3 m
- Electrical lanes (OSFP end): 8x 50G PAM-4
- Electrical lanes (QSFP end): 4x 25G NRZ per QSFP
- Gearbox: in QSFP end, converts 2x 50G PAM-4 to 4x 25G NRZ
- Maximum power: OSFP end 10 W, QSFP end 4 W
- OSFP dimensions (H x W x D): 13.0 x 22.6 x 100.4 mm
- QSFP 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

FAQs

Q: What does the gearbox in this cable do?
A: The gearbox in the QSFP end converts 2x 50G PAM-4 electrical lanes into 4x 25G NRZ lanes, so each 100G QSFP port receives the signalling it expects.

Q: Which ports does each end of the cable connect to?
A: The OSFP end plugs into a 400G OSFP port running 8x 50G PAM-4 lanes. Each of the four QSFP ends plugs into a 100G QSFP100 port running 4x 25G NRZ lanes.

Q: How much power does the cable draw?
A: Maximum power is 10 W at the OSFP end and 4 W at each QSFP end.

Q: Is there a version for QSFP-DD switch ports?
A: Yes. The QSFP-DD equivalent is the H-D400-4Q100-xM family. This SKU is the OSFP version.

Q: What is the maximum reach?
A: This is a 3 metre cable, intended for short-distance connections within or between adjacent racks.

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