Synology DS420+ 4 disk network storage server NAS private cloud disk…

 The hard disk is different from the factory date, and some are about 21 years and some are new dates. Some disks belong to the test time of the computer room. The test time and number of tests of each disk are different.Customer service can be replaced within 1 week after signing, which can be repaired or replaced for 1 week. Regarding the warranty: The disassembly inventory is not supported by the sequence number, and the normal use faults are faulty. Our store is responsible for the warranty. The warranty time is generally the two -year period began on the day of signing.The new list is generally warranty for 3 years, and some products are guaranteed for 5 years. Please communicate with customer service.