NVIDIA GB300 GPU specification
Company: IREN
The claim, verbatim
The GPU Services for Microsoft will comprise NVIDIA GB300 GPUs installed across four Horizon data center facilities
Source (primary)
IREN 8-K filed 2025-11-03 (SEC EDGAR, sec_filing)
View cached copy (2026-08-31)Live source ↗
Quote: “The GPU Services will comprise NVIDIA GB300 GPUs and will be installed across four data center facilities at Childress”
How we checked this
Checked on September 16, 2026. The cited source supports every part of this claim.
The filing specifies NVIDIA GB300 GPUs and the four named Horizon facilities at Childress.
Confirmed in the source:
- The GPU Services provided to Microsoft will comprise NVIDIA GB300 GPUs
- The GPUs will be installed across four data center facilities at Childress known as Horizon 1 through Horizon 4
What we did: Read our cached copy of SEC EDGAR (https://www.sec.gov/Archives/edgar/data/1878848/000114036125040072/ef20058139_8k.htm) in full (7,303 characters, retrieved August 31, 2026) and checked each assertion in the claim against it.
Additional evidence
confirms IREN 8-K filed 2025-11-03
Quote: “The GPU Services will comprise NVIDIA GB300 GPUs and will be installed across four data center facilities at Childress”