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NVIDIA Mellanox LinkX Active Optical Cables (AOC)
Table of Contents
NVIDIA Mellanox LinkX Active Optical Cables (AOC) — 100G & 200G#
NVIDIA LinkX® Active Optical Cables (AOC) combine transceiver components and fiber cabling into a single, factory-terminated assembly. AOCs are designed for longer distances than copper DACs (up to 80 meters) while being lighter, thinner, and more flexible, making them ideal for high-density cable management within and across server rows.
AOC Product Catalog#
Below is the list of original Mellanox active optical cables in our inventory, categorized by bandwidth tier.
NVIDIA Mellanox 100G QSFP28 Active Optical Cable
NVIDIA 200G QSFP56 Active Optical Cable
1. 100G Active Optical Cables (QSFP28)#
| Part Number | Connector Type | Length | Fiber Type | Description |
|---|---|---|---|---|
| MFA1A00-E003 | QSFP28 to QSFP28 | 3.0m | Multimode (MMF) | 100Gb/s Active Optical Cable |
| MFA1A00-E005 | QSFP28 to QSFP28 | 5.0m | Multimode (MMF) | 100Gb/s Active Optical Cable |
| MFA1A00-E010 | QSFP28 to QSFP28 | 10m | Multimode (MMF) | 100Gb/s Active Optical Cable |
| MFA1A00-E015 | QSFP28 to QSFP28 | 15m | Multimode (MMF) | 100Gb/s Active Optical Cable |
| MFA1A00-E020 | QSFP28 to QSFP28 | 20m | Multimode (MMF) | 100Gb/s Active Optical Cable |
| MFA1A00-E030 | QSFP28 to QSFP28 | 30m | Multimode (MMF) | 100Gb/s Active Optical Cable |
2. 200G Active Optical Cables (QSFP56)#
| Part Number | Connector Type | Length | Fiber Type | Description |
|---|---|---|---|---|
| MFS1S00-H003V | QSFP56 to QSFP56 | 3.0m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H005V | QSFP56 to QSFP56 | 5.0m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H010V | QSFP56 to QSFP56 | 10m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H015V | QSFP56 to QSFP56 | 15m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H020V | QSFP56 to QSFP56 | 20m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H025V | QSFP56 to QSFP56 | 25m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H030V | QSFP56 to QSFP56 | 30m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H035V | QSFP56 to QSFP56 | 35m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H040V | QSFP56 to QSFP56 | 40m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H045V | QSFP56 to QSFP56 | 45m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H050V | QSFP56 to QSFP56 | 50m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H060V | QSFP56 to QSFP56 | 60m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H070V | QSFP56 to QSFP56 | 70m | Multimode (MMF) | 200Gb/s Active Optical Cable |
| MFS1S00-H080V | QSFP56 to QSFP56 | 80m | Multimode (MMF) | 200Gb/s Active Optical Cable |
Technical Comparison: DAC vs AOC#
Choosing between Direct Attach Copper (DAC) and Active Optical Cables (AOC) depends on physical layout and airflow considerations:
1. Distance & Reach#
- DAC: Capped at 5m due to electrical attenuation over copper.
- AOC: Supports lengths up to 80–100m, allowing connection of servers in different racks or rows.
2. Cable Weight & Thickness#
- DAC: Copper wire bundle is thick and heavy. 5m DAC bundles can weigh several kilograms, putting stress on cable management arms and blocking chassis exhaust airflow.
- AOC: Extremely thin, flexible glass fiber. Minimal weight and airflow obstruction.
3. Latency & Power#
- DAC (Passive): Near-zero latency and 0W power consumption.
- AOC: Optical conversion engines at each connector shell introduce a tiny fraction of latency (negligible in most workloads) and consume approximately 1–1.5W per plug end.
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