Synology DiskStation DS412+ 4-Bay NAS Blinking Blue Light Parts Repair w/500GBFor Parts or Repair – Sold AS-IS with no guarantee of functionality. Review photos & description before purchasing. GRADE CSYNOLOGY DISKSTATION DS412+ 4-BAY NETWORK ATTACHED STORAGEGRADE C — FOR PARTS OR REPAIRCURRENTLY NONWORKING — BLINKING BLUE POWER LIGHTPREVIOUSLY TESTED WORKING — SEE TEST SCREENSHOTS500GB WD BLUE HARD DRIVE WITH DSM INCLUDEDFOUR ORIGINAL DRIVE CADDIES INCLUDEDNO EXTERNAL POWER SUPPLY INCLUDEDYou are purchasing a Synology DiskStation DS412+ four-bay NAS that was initially tested successfully but subsequently developed a boot failure.IMPORTANT — PLEASE READ THE COMPLETE TESTING HISTORY BEFORE PURCHASING.This unit is currently NONWORKING and is being offered strictly for parts or repair.TESTING HISTORYINITIAL TESTING — SUCCESSFULDuring initial evaluation, the Synology DS412+ was operational.All four drive bays were individually tested and confirmed working.The NAS was operated overnight without reported problems.The original testing screenshots document the system's earlier successful operation.SUBSEQUENT FAILURE — CURRENT CONDITIONAfter the successful testing period, the unit was being prepared for a factory reset.Following a reboot, the NAS would no longer start normally.The front power indicator now exhibits a persistent BLINKING BLUE LIGHT.Attempts to restore normal operation have been unsuccessful.The unit does not presently boot into a usable DSM environment.The factory reset was not successfully completed.The underlying cause of the failure has NOT been determined.No motherboard, power circuitry, memory, firmware, or component-level fault has been conclusively diagnosed.The original successful test results are provided as historical information ONLY.THEY DO NOT REPRESENT THE CURRENT OPERATING CONDITION.CURRENT STATUS: NONWORKING — FOR PARTS OR REPAIR.INCLUDED 500GB WD BLUE HARD DRIVETo provide an additional component for the buyer, one 500GB Western Digital Blue hard drive is included.The drive contains an existing Synology DSM installation.The drive previously reported good health during evaluation.The drive is included as-is, and its current operation has not been independently reverified following the NAS failure.The presence of DSM on this drive DOES NOT guarantee that the NAS will boot, recover, or operate normally.The existing DSM installation is not represented as a successfully reset or ready-to-use configuration.The buyer should expect to erase, reinitialize, or otherwise prepare the drive if it can be reused.TECHNICAL SPECIFICATIONSManufacturer: SynologyProduct Family: DiskStationModel: DS412+Device Type: Network Attached StorageDrive Bays: 4Supported Drive Type: 3.5-inch / 2.5-inch SATA HDD or SSDProcessor: Intel Atom Dual-Core 2.13 GHzSystem Memory: 1GB DDR3Network Connectivity: 2 × Gigabit EthernetExternal Connectivity: USB and eSATAOperating System: Synology DiskStation Manager (DSM)Drive Configuration: Hot-Swappable Drive TraysRAID Capabilities: Model supports Synology Hybrid RAID and conventional RAID configurationsThese specifications describe the manufacturer's original model capabilities.They are NOT a representation that the listed NAS currently performs these functions.PHYSICAL CONDITIONPreviously owned Synology NAS with normal cosmetic wear from handling, storage, and prior use.Exterior surfaces may show scratches, scuffs, and other signs of use.Four drive caddies are included.The chassis and caddies may be useful for repair or component harvesting.Please review the actual photographs for cosmetic condition and included components.WHAT'S INCLUDED1 × Synology DiskStation DS412+ NAS Chassis4 × Drive Caddies1 × 500GB Western Digital Blue Hard Drive with Existing DSM InstallationNO EXTERNAL POWER SUPPLY INCLUDED.No additional hard drives, network cables, manuals, or other accessories are included unless specifically photographed.IMPORTANT — POWER SUPPLY NOT INCLUDEDThis NAS requires a compatible external power supply.The buyer must provide a suitable power supply for any testing or repair attempts.No representation is made that supplying a compatible power adapter will resolve the blinking blue light or restore normal operation.FOR PARTS / REPAIR BUYERSThis unit may be useful for:Synology NAS Repair ProjectsReplacement Chassis ComponentsDrive Caddies and Mechanical PartsElectronics DiagnosticsComponent SalvageExperienced NAS Restoration TechniciansBecause the NAS was previously functional, the failure may be of interest to an experienced technician.However, the cause is unknown, and repairability is NOT guaranteed.The buyer should assume that the unit may require substantial repairs or may never be restored to normal operation.FINAL CONDITION DISCLOSUREGRADE C — FOR PARTS OR REPAIR — SOLD AS-IS.THE NAS CURRENTLY DOES NOT BOOT NORMALLY.THE POWER INDICATOR BLINKS BLUE CONTINUOUSLY.Previous successful testing and overnight operation are historical only.The included 500GB WD Blue hard drive does not establish that the NAS is recoverable.No guarantee of functionality, successful repair, DSM recovery, or continued operation is provided.Please review all actual photographs and testing information before purchasing.SHIPPING SPECSUnit Weight: Estimated 9 lb including installed 500GB HDD and four caddiesPacked Shipping Weight: Estimated 12 lbShipping Carton Dimensions (L × W × H): Estimated 16 × 14 × 12 inSKU: 2117 Condition Grading Guide Grade A: New / Open Box only. Grade B: Used / Pre-Owned, including Like New. Testing status is disclosed separately. Grade C: Parts / Repair / AS-IS. Untested or incomplete status alone does not require Grade C. WHY BUY FROM US • Fast, careful packing with protective materials
• Clear photos of the actual item(s) you will receive
• Transparent condition notes (tested / power-tested / for parts)
• Quick response to messages during business hours
• Professional surplus & e-waste handling experience IF THERE'S AN ISSUE OF ANY KIND, PLEASE CONTACT US FIRST BEFORE STARTING A RETURN — THANK YOU! International shipping via ’s Global Shipping Program only.
Import duties/taxes (if applicable) are the buyer’s responsibility.
Buyer pays return shipping unless defective.
AS-IS units are final sale.
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Feel free to message us with any questions.Synology DS412+ DiskStation 4 bay NAS network attached storage blinking blue power light blue LED boot failure nonworking parts repair Synology chassis drive trays caddies Western Digital WD Blue 500GB DSM RAID network storage salvage
