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-420, NAS, Tower, Marvell, 0.5 GB, DDR3, 16 TB QNAP TS-420. Type: NAS. Chassis type: Tower. Device class: Small & Medium Business. Processor family: Marvell, Processor frequency: 1.6 GHz. Internal memory: 0.5 GB, Internal memory type: DDR3. Total installed storage capacity: 16 TB, Installed storage drive type: HDD. Operating system installed: QNAP Turbo System NAS devices come in all shapes and sizes nowadays. QNAP is of course one of the bigger names known for its high-end products, and it now has the new QNAP TS-420, a 4-bay NAS. It's perhaps not as deluxe as some of the top of the line models, but it still... On the one hand QNAP has made a very versatile NAS device that has tons of software features and lots of connectors. The QTS 4.0 firmware is very comprehensive. The chassis is solid, and the build quality is good. On the other, the hardware inside isn...