Hardware Spec Index

Kestrix NS-6640 Ultra 8-Bay NAS (10GbE, M.2 Cache)

NAS Systems · Kestrix · SKU NS6640-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index7,235 (NAS Systems scale)
Category rank#9,444
Street price$2,499
Power75 W
Performance per dollar2.90
Released2021

Specifications

BrandKestrix
ModelKestrix NS-6640 Ultra
Drive bays8× 3.5"/2.5" SATA, hot-swappable
Max raw capacity192 TB
Processor4-core x86, up to 3.6 GHz
Memory32 GB DDR4 ECC
Network1× 10GbE + 2× 2.5GbE
M.2 NVMe slots2× (cache or storage pool)
PCIe expansion1× PCIe 4.0 x4 slot
RAIDRAID 0/1/5/6/10, JBOD
File systemBtrfs, ext4
USB2× USB 3.2 Gen 1

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Cite this page: Hardware Spec Index, “Kestrix NS-6640 Ultra 8-Bay NAS (10GbE, M.2 Cache)”, https://vextor7.com/item/224715 (accessed 2026-10-20).