Hard drives are not included but almost any capacity hard drives can be added for extra price.

Price fixed and reduced constantly!
No Bargain!

QNAP NAS TS-431P
Still supported by manufacture, and updatable by software and security.
Support this model not discontinued!

TS-431p works good and was pulled from work place and updated to a new device and this one for sale.
No any problem, the warranty one month come with power supply and screws for hard drives.

https://www.qnap.com/en/product/ts-431p

Equipped with an Annapurna Labs, an Amazon company Alpine AL-212 dual-core 1.7 GHz Cortex-A15 processor and 1GB DDR3 RAM, the TS-431P is a high-performance NAS for home, workgroups and SOHO users providing outstanding performance of up to 223 MB/s read & 172 MB/s write throughput. The TS-431P's enhanced hardware-based encryption and decryption engine provides transfer speeds of over 190 MB/s with AES 256-bit full NAS volume encryption, boosting system performance & security while ensuring the safety of sensitive personal data stored in the NAS. When used with a compatible 802.11ac or dual-band 2.4GHz/5GHz 802.11n USB Wi-Fi adapter, the TS-431P becomes an ideal media center with remarkably high speeds for transferring a large amount of files and streaming bandwidth-intensive multimedia.
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