QNAP
QNAP TS-431K-US 4-Bay Annapurna Labs AL-214 Quad-Core 1.7 GHz Processor with 1 GB RAM
Asustor
ASUSTOR NIMBUSTOR 4 AS5304T 4-Bay NAS Enclosure, Intel Quad Core 2.5GHz CPU, 4GB DDR4, Diskless Network Attached Storage
Synology
Synology DiskStation DS423+ 4-Bay 3.5" Diskless, Intel Celeron J4125 4-core, 2xGbE NAS (SMB) - 2GB RAM, 2 x USB3.2, 3 Years wty
Synology
Synology DS423 NAS Kit, 4 Bay, Quad-Core CPU, 2GB Memory, for Middle-Light Users, Domestic Authorized Dealer, Phone Support Compatible, DiskStation