The DLNA Certification and Logo Program is designed to ensure that DLNA Certified products have implemented the features necessary to comply with the DLNA Guidelines, and that they will in fact interoperate with other similar devices when connected to those devices in a consumer's home environment. The DLNA Certification and Logo Program enables companies to certify their products through a well-defined and rigorous process. Y QNAP TS-873, NAS, Tower, AMD Embedded R-Series SoC, RX-421ND, 4 GB, DDR4 QNAP TS-873. Type: NAS. Chassis type: Tower. Device class: Home & Home Office. Processor family: AMD Embedded R-Series SoC, Processor model: RX-421ND, Processor frequency: 2.1 GHz. Internal memory: 4 GB, Internal memory type: DDR4. Total installed storage capacity: 96 TB, Installed storage drive type: HDD. Operating system installed: QNAP Turbo System