If you're OK without power loss and using a Lenovo OEM NEW Samsung PM961 1TB PCIExpress Gen3x4 PCIe NVMe M.2 SSD SLW1T00 960 PRO 1024GB | eBay
Compare at $580 on Amazon https://www.amazon.com/Samsung-960-PRO-Internal-MZ-V6P1T0BW/dp/B01LYRCIPG/
There's also a 2TB model on ebay for $899 Samsung 960 PRO Series - 2TB PCIe NVMe - M.2 Internal SSD (MZ-V6P2T0BW) | eBay
That's like $1200 on amazon https://www.amazon.com/Samsung-960-PRO-Internal-MZ-V6P2T0BW/dp/B01LY3Y9PH/
Compare at $580 on Amazon https://www.amazon.com/Samsung-960-PRO-Internal-MZ-V6P1T0BW/dp/B01LYRCIPG/
There's also a 2TB model on ebay for $899 Samsung 960 PRO Series - 2TB PCIe NVMe - M.2 Internal SSD (MZ-V6P2T0BW) | eBay
That's like $1200 on amazon https://www.amazon.com/Samsung-960-PRO-Internal-MZ-V6P2T0BW/dp/B01LY3Y9PH/