WD_BLACK SN8100 4TB
PCIe 5.0 NVMe, up to 14,900 MB/s read: a 40GB model file (70B at Q4) loads in roughly 3s from a cold cache. 4TB holds ~88 such models. Not a VRAM substitute: llama.cpp mmap or DeepSpeed/accelerate NVMe offload streaming weights from SSD is 10-100x slower than VRAM or RAM, so only for experiments. Cooling: Gen5 drives throttle without airflow; use the motherboard M.2 heatsink or the heatsink version. Full speed needs a CPU-attached PCIe 5.0 M.2 slot.
Specs: PCIe 5.0 x4 NVMe, M.2 2280 · seq. read 14,900 MB/s · seq. write 14,000 MB/s · 2,400 TBW · DRAM (4GB DDR4)
Specs: official spec page
WD / SanDisk · ssd · 4000 GB · tags: ssd, nvme, pcie5, 4tb
EU / DE trend
US trend
No history points for this filter.
History points
| Date | Region | Condition | Median | Source |
|---|---|---|---|---|
| 2026-10-16 | DE | new | €846 | mindfactory |
| 2026-10-16 | DE | new | €789 | alternate-de |
Accepted offers (2)
| Title | Price | Region | Source | Trust | Fresh | vs median |
|---|---|---|---|---|---|---|
| 4TB SanDisk WD Black SN8100 M.2 2280 PCIe 5.0 x4 3D-NAND TLC (WDS400T1X0M-00CMT0) Details new · 2026-10-16 | €846 | DE | mindfactory.de | high | fresh | 107% |
| WD Black SN8100 4TB, SSD new · 2026-10-16 | €789 | DE | alternate.de | high | fresh | 100% |