Hardware Spec Index

Halcyra NS-6666 Ultra 4-Bay NAS (1GbE, M.2 Cache)

NAS Systems · Halcyra · SKU NS6666-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index3,792 (NAS Systems scale)
Category rank#44,531
Street price$679
Power43 W
Performance per dollar5.58
Released2020

Specifications

BrandHalcyra
ModelHalcyra NS-6666 Ultra
Drive bays4× 3.5"/2.5" SATA, hot-swappable
Max raw capacity96 TB
Processor4-core ARM, 1.7 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
Kestrix NS-4161 XT 12-Bay NAS (10GbE, M.2 Cache)6,204$1,829Compare
Mirenta NS-2760 Pro 4-Bay NAS (1GbE)2,246$269Compare
Halcyra NS-6855 Core 2-Bay NAS (2.5GbE)2,382$289Compare
Kestrix NS-1973 Core 6-Bay NAS (1GbE, M.2 Cache)4,657$889Compare
Mirenta NS-8795 XT 2-Bay NAS (2.5GbE)2,787$399Compare
Halcyra NS-2590 XT 2-Bay NAS (1GbE)3,252$469Compare

All NAS Systems · JSON

Cite this page: Hardware Spec Index, “Halcyra NS-6666 Ultra 4-Bay NAS (1GbE, M.2 Cache)”, https://vextor7.com/item/4571237 (accessed 2026-10-19).