Arista supports a full range of 400G optical transceivers, Active Optical Cables (AOCs) and Direct Attach Copper cables (DACs), compliant to IEEE standards and industry Multi Source Agreements (MSAs). Arista offers 400G systems and transceivers in both OSFP and QSFP-DD form factors (a detailed comparison of OSFP and QSFP-DD form factors is contained later in this document). The tables below summarize the 400G connectivity options supported.
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| OSFP Part Number | QSFP-DD Part No. | Product Description |
| OSFP to OSFP and QSFP-DD to QSFP-DD Cables | ||
| CAB-O-O-400G-1M | CAB-D-D-400G-1M | 400G Passive DAC, 1 meter (OSFP to OSFP, or QSFP-DD to QSFP-DD) |
| CAB-O-O-400G-2M | CAB-D-D-400G-2M | 400G Passive DAC, 2 meter (OSFP to OSFP, or QSFP-DD to QSFP-DD) |
| CAB-O-O-400G-3M | CAB-D-D-400G-2.5 | 400G Passive DAC, 3 meter (OSFP to OSFP), or |
| 2.5 meter (QSFP-DD to QSFP-DD) | ||
| OSFP or QSFP-DD to 8x 50G SFP | ||
| CAB-O-8S-400G-1M | CAB-D-8S-400G-1M | 400G Passive DAC, 1 meter (OSFP or QSFP-DD to 8x 50G SFP) |
| CAB-O-8S-400G-2M | CAB-D-8S-400G-2M | 400G Passive DAC, 2 meter (OSFP or QSFP-DD to 8x 50G SFP) |
| CAB-O-8S-400G-3M | CAB-D-8S-400G-2.5 | 400G Passive DAC, 3 meter (OSFP to 8x 50G SFP), or |
| 2.5 meter (QSFP-DD to 8x 50G SFP) | ||
| OSFP or QSFP-DD to 4x 100G QSFP with 2 x 50G lanes | ||
| CAB-O-4Q-400G-1M | CAB-D-4Q-400G-1M | 400G Passive DAC, 1 meter (OSFP or QSFP-DD to 4x 100G QSFP with 2 x 50G lanes per QSFP) |
| CAB-O-4Q-400G-2M | CAB-D-4Q-400G-2M | 400G Passive DAC, 2 meter (OSFP or QSFP-DD to 4x 100G QSFP with 2 x 50G lanes per QSFP) |
| CAB-O-4Q-400G-3M | CAB-D-4Q-400G-2.5 | 400G Passive DAC, 3 meter (OSFP to 4x 100G QSFP with 2 x 50G lanes), or |
| 2.5 meter (QSFP-DD to 4x 100G QSFP with 2 x 50G lanes) | ||
| OSFP or QSFP-DD to 2x 200G QSFP | ||
| CAB-O-2Q-400G-1M | CAB-D-2Q-400G-1M | 400G Passive DAC, 1 meter (OSFP or QSFP-DD to 2x 200G QSFP) |
| CAB-O-2Q-400G-2M | CAB-D-2Q-400G-2M | 400G Passive DAC, 2 meter (OSFP or QSFP-DD to 2x 200G QSFP) |
| CAB-O-2Q-400G-3M | CAB-D-2Q-400G-2.5 | 400G Passive DAC, 3 meter (OSFP to 2x 200G QSFP), or |
| 2.5 meter (QSFP-DD to 2x 200G QSFP) | ||
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