• Silver arista adpt-o-q-100g3 osfp to qsfp28 adapter with black protective housing and green internal latch mechanism
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Arista

Arista ADPT-O-Q-100G3 | OSFP to QSFP28 Adapter, 100G, Passive

ADPT-O-Q-100G3

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Description

The Arista ADPT-O-Q-100G3 enables the use of 100G QSFP28 optical modules in OSFP ports when configured for 100G operation. This passive mechanical adapter provides a cost-effective migration path for data centre operators deploying 400G infrastructure while maintaining backward compatibility with existing 100G QSFP inventory. Compatible with Arista switches featuring OSFP ports, this adapter supports 4x25G NRZ electrical lanes for seamless 100 Gigabit Ethernet connectivity.

Features

Passive mechanical adapter with no active electronics
- Enables 100G QSFP28 modules in OSFP ports
- Hot-swappable for easy installation and removal
- 4x25G NRZ electrical interface support
- No power consumption or heat generation
- Compatible with all standard 100G QSFP28 optical transceivers
- Supports SR4, LR4, PSM4, CWDM4, and other 100G QSFP28 form factors
- Cost-effective backward compatibility solution
- Plug-and-play operation with no software required
- RoHS compliant and environmentally friendly

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: OSFP to QSFP28 adapter
- Data Rate: 100 Gbps (4 x 25G NRZ electrical lanes)
- Technology: Passive mechanical adapter, no active components
- Compatibility: 100G QSFP28 optical modules only (copper cables and 200G QSFP-DD modules not supported)
- Port Configuration: Requires OSFP port configured for 100G operation
- Supported Modules: 100G QSFP28 optical transceivers (40G/200G modules not supported)
- Power Draw: Passive device, no power consumption
- Hot-Swappable: Yes
- Compliance: QSFP28 MSA, OSFP MSA standards
- Operating Temperature: 0°C to 70°C (commercial grade)

FAQs

Q: What types of modules can I use with the ADPT-O-Q-100G3 adapter?
A: The ADPT-O-Q-100G3 supports 100G QSFP28 optical modules only. Copper DAC cables, 200G QSFP-DD modules, and 40G QSFP+ modules cannot be used with this adapter. The OSFP port must be configured for 100G operation.

Q: Is this adapter compatible with all Arista switches?
A: This adapter is designed for Arista platforms with OSFP ports, typically found in 400G-capable data centre switches. Refer to Arista's Transceiver and Cable Guide for specific platform compatibility and configuration requirements.

Q: Does the adapter require any configuration or software licenses?
A: No software configuration is required for the adapter itself. However, the OSFP port must be configured at the switch level to operate at 100G speed. The adapter is completely passive and requires no power or management.

Q: Can I use this adapter for 40G QSFP+ modules?
A: No, the ADPT-O-Q-100G3 is specifically designed for 100G QSFP28 optical modules. It supports 4x25G NRZ signaling and is not compatible with 40G QSFP+ modules which use 4x10G signaling.

Q: What is the typical use case for this adapter?
A: This adapter is ideal for data centre migrations to 400G infrastructure where you need to maintain connectivity with existing 100G QSFP28 optics inventory. It allows operators to deploy new OSFP-based switches while gradually transitioning to native 400G connectivity.

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