Hardware Spec Index

Kestrix NS-4521 Pro 2-Bay NAS (1GbE)

NAS Systems · Kestrix · SKU NS4521-PRO · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index2,770 (NAS Systems scale)
Category rank#19,309
Street price$379
Power28 W
Performance per dollar7.31
Released2020

Specifications

BrandKestrix
ModelKestrix NS-4521 Pro
Drive bays2× 3.5"/2.5" SATA, hot-swappable
Max raw capacity48 TB
Processor4-core ARM, 1.7 GHz
Memory4 GB DDR4
Network2× 1GbE
M.2 NVMe slotsNone
PCIe expansionNone
RAIDRAID 0/1, JBOD
File systemBtrfs, ext4
USB2× USB 3.2 Gen 1

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Cite this page: Hardware Spec Index, “Kestrix NS-4521 Pro 2-Bay NAS (1GbE)”, https://vextor7.com/item/921633 (accessed 2026-10-22).