"Can you please confirm whether the 1TB SSD in item 9SIAKWUK7F2528 is an M.2 NVMe SSD or a SATA SSD?"

Thank you for your question! The 1TB SSD would be NVMe. Let us know if you have any other questions,

Questions & Answers: Refurbished: Dell OptiPlex 7000 7000 SFF Small Form Factor Desktop (2022) | Core i7 - 1TB SSD + 1TB HDD - 32GB RAM | 12 Cores @ 4.9 GHz - 12th Gen CPU

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Dell OptiPlex 7000 7000 SFF Small Form Factor Desktop (2022) | Core i7 - 1TB SSD + 1TB HDD - 32GB RAM | 12 Cores @ 4.9 GHz - 12th Gen CPU

Dell OptiPlex 7000 SFF Desktop Black
i7 i7-12700 Twelve-Core Processor 1.6GHz (4.9GHz With Turbo Boost)
1TB SSD + 1TB HDD Hard Drive & 32GB RAM Memory
integrated graphics chip
Wireless Wifi & Bluetooth, DVD Drive, Keyboard and mouse Included. Windows 11 Professional