Illustrative 512-GPU back-end BOM
32 switches / 2,048 modulesderived
| Value kind | derived — Derived values are guide calculations; their result is only as fixed as the stated inputs, scope, and method. |
|---|---|
| Scope | Eight rails, two SUs, 64-port 400G switches, one NIC/GPU; 1,024 channels and 491.52 active strand-km. Separate from GB200 reference. |
| As of | 2026-09 |
| Source | Guide illustrative inputs and derivation; primary link supplies the method, not measurements or market prices. |
| Review | checking…review by 2026-12-05 · standard cadence |
| Recorded changes | none recorded |
| Claim id | part8-fabric-bom-illustrative |
Where the guide uses it
Not quoted in a chapter yet; it is kept in the curated register.
← Full numbers register — every date-stamped figure in the guide, with revision history.