NVIDIA announced B300 (Blackwell Ultra) and GB300 NVL72 on 18 March 2025. Dell says it shipped the first GB300 NVL72 on 3 July 2025, and Supermicro announced volume shipments of HGX B300 systems and GB300 NVL72 racks on 11 September 2025. A reserved block starts later: as of 26 October 2026, the earliest reserved B300 start in our pipeline is Q4 2026, the current quarter, among 19 operators with B300 offers; for GB300 NVL72 racks it is Q1 2027, among 8 operators. NVIDIA says Vera Rubin is ramping into full production; 5 operators in our pipeline take reservations for it, typically on 5-year terms.
A release date tells you when the first systems ship. For a reserved block of hundreds or thousands of GPUs, the date that matters is when an operator's site with those GPUs is ready for you. In our offers of 26 October that gap is about a year for B300 and more than a year for GB300 NVL72.
| Model | What happened | Source |
|---|---|---|
| B300 and GB300 NVL72 (Blackwell Ultra) | Announced 18 March 2025; NVIDIA expected products from partners from the second half of 2025 | NVIDIA, 18 March 2025 |
| GB300 NVL72 | Dell said it shipped the first GB300 NVL72 on 3 July 2025 | Dell, 3 July 2025 |
| HGX B300 servers, GB300 NVL72 racks | Supermicro announced volume shipments of HGX B300 systems and GB300 NVL72 racks to customers worldwide on 11 September 2025 | Supermicro, 11 September 2025 |
| HGX B300 today | NVIDIA's HGX page lists HGX B300 as shipping now | NVIDIA HGX |
| Vera Rubin | 5 January 2026: Rubin in full production, products from partners in the second half of 2026 | NVIDIA, 5 January 2026 |
| Vera Rubin | 26 August 2026: ramping into full production, with racks running at partners | NVIDIA results, 26 August 2026 |
Specs and the full B300 timeline: B300 specs. Vera Rubin terms and reservations: Vera Rubin NVL72.
| GPU | Operators with current offers | Can start | Operators by region | Typical term |
|---|---|---|---|---|
| B300 (HGX) | 19 | From Q4 2026 | US 6, Asia-Pacific 5, Europe 3, others elsewhere | 1 to 3 years |
| GB300 NVL72 | 8 | From Q1 2027 | Europe 3, US 2 | 3 years |
| Vera Rubin | 5 | Not published on 26 October | Europe 3, others elsewhere | 5 years |
| B200 (HGX) | 2 | Not published | Not published | Not published |
From our weekly summary of operator offers. We show a start, a region or a term only when no single operator's offer shows through: a model needs at least three operators, a start quarter or a region two. That is why B200, with 2 operators, has no start date here; Vera Rubin has no start quarter in the summary of 26 October. Can start is the earliest quarter that at least two operators name, not a date for every operator in the row; Q4 2026 is the current quarter. Current figures: GPU availability.
| Week of | B300 operators | B300 can start | GB300 NVL72 operators | GB300 NVL72 can start | Vera Rubin operators | Vera Rubin can start |
|---|---|---|---|---|---|---|
| 14 October 2026 | 24 | From Q4 2026 | 8 | From Q1 2027 | 4 | From Q1 2027 |
| 19 October 2026 | 22 | From Q4 2026 | 8 | From Q1 2027 | 5 | From Q1 2027 |
| 26 October 2026 | 19 | From Q4 2026 | 8 | From Q1 2027 | 5 | Not published |
The start quarters for B300 and GB300 NVL72 held from 14 to 26 October. The operator counts move as offers expire and new ones come in, so the counts show the offers current that week, not the size of the market.
A month or a quarter is the ready date an operator names for its site today. It holds only if the contract and the deposit are in place in time: most lead times count from a signed contract and a paid deposit, not from the first call, so a block for Q1 2027 is signed ahead of that quarter.
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NVIDIA announced B300 (Blackwell Ultra) on 18 March 2025 and expected products from partners from the second half of 2025. Supermicro announced volume shipments of HGX B300 systems on 11 September 2025.
As of 26 October 2026 the earliest reserved B300 start in our pipeline is Q4 2026, the current quarter, among 19 operators with B300 offers, typically on terms of 1 to 3 years.
NVIDIA announced it with Blackwell Ultra on 18 March 2025, Dell says it shipped the first GB300 NVL72 on 3 July 2025, and Supermicro announced volume shipments of GB300 NVL72 racks on 11 September 2025. Reserved GB300 NVL72 racks in our pipeline start from Q1 2027, typically on 3-year terms.
NVIDIA said on 5 January 2026 that Rubin was in full production, with products from partners in the second half of 2026, and on 26 August 2026 that racks were running at partners. In our pipeline 5 operators take Vera Rubin reservations, typically on 5-year terms; the summary of 26 October 2026 has no start quarter for it.
Reserved blocks come from sites that operators are still building, and GB300 NVL72 needs liquid cooling and high power per rack. The quarter is the ready date the operator names for its site, and it holds only if the contract and the deposit are in place in time.
