Hardware Spec Index

Kestrix NS-6891 Ultra 5-Bay NAS (1GbE, M.2 Cache)

NAS Systems · Kestrix · SKU NS6891-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index4,822 (NAS Systems scale)
Category rank#27,308
Street price$1,109
Power50 W
Performance per dollar4.35
Released2021

Specifications

BrandKestrix
ModelKestrix NS-6891 Ultra
Drive bays5× 3.5"/2.5" SATA, hot-swappable
Max raw capacity120 TB
Processor8-core x86, up to 3.2 GHz
Memory4 GB DDR4
Network2× 1GbE
M.2 NVMe slots2× (cache or storage pool)
PCIe expansionNone
RAIDRAID 0/1/5/6/10, JBOD
File systemBtrfs, ext4
USB2× USB 3.2 Gen 1

Related guides

NAS RAID Levels ExplainedCMR vs SMR Hard DrivesNVMe SSDs Explained2.5GbE, 5GbE and 10GbE Networking

Similar NAS Systems

ModelBenchmarkPriceCompare
Halcyra NS-4107 SE 5-Bay NAS (1GbE, M.2 Cache)3,416$549Compare
Novexa NS-6071 Edge 2-Bay NAS (1GbE)2,170$249Compare
Halcyra NS-9525 Plus 4-Bay NAS (2.5GbE)3,054$429Compare
Kestrix NS-2449 Ultra 8-Bay NAS (10GbE, M.2 Cache)6,876$2,019Compare
Mirenta NS-1838 SE 2-Bay NAS (1GbE)1,383$149Compare
Halcyra NS-7161 Core 2-Bay NAS (1GbE)2,415$239Compare

All NAS Systems · JSON

Cite this page: Hardware Spec Index, “Kestrix NS-6891 Ultra 5-Bay NAS (1GbE, M.2 Cache)”, https://vextor7.com/item/83170424 (accessed 2026-10-19).