Hardware Spec Index

Kestrix NS-4903 Ultra 4-Bay NAS (2.5GbE)

NAS Systems · Kestrix · SKU NS4903-ULTRA · Released 2022 · Updated 2026-10-18

Key facts

Benchmark index2,415 (NAS Systems scale)
Category rank#33,457
Street price$329
Power39 W
Performance per dollar7.34
Released2022

Specifications

BrandKestrix
ModelKestrix NS-4903 Ultra
Drive bays4× 3.5"/2.5" SATA, hot-swappable
Max raw capacity96 TB
Processor4-core ARM, 1.7 GHz
Memory4 GB DDR4
Network2× 2.5GbE
M.2 NVMe slotsNone
PCIe expansionNone
RAIDRAID 0/1/5/6/10, JBOD
File systemBtrfs, ext4
USB2× USB 3.2 Gen 2 (10Gbps)

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Cite this page: Hardware Spec Index, “Kestrix NS-4903 Ultra 4-Bay NAS (2.5GbE)”, https://vextor7.com/item/6779258 (accessed 2026-10-18).