The Synology DiskStation DS1525neo+ is a 5-bay network attached storage system powered by the AMD Ryzen V1500B quad-core processor. It combines five SATA drive bays, two M.2 2280 NVMe slots and dual built-in 2.5GbE networking to provide a flexible platform for centralized storage, backup, file synchronization and private cloud applications. The DS1525neo+ comes with 4 GB DDR4 non-ECC SODIMM memory and supports expansion up to 32 GB. Storage capacity can grow from five to fifteen drive bays using up to two Synology DX525 expansion units, while a dedicated PCIe Gen3 x2 network upgrade slot provides an additional path for higher-speed networking. Key Features 5-Bay NAS: Supports five compatible 3.5-inch SATA HDDs or 2.5-inch SATA SSDs. AMD Ryzen V1500B: 4-core, 8-thread 64-bit processor operating at 2.2 GHz. 4 GB DDR4 Memory: Pre-installed 4 GB DDR4 non-ECC SODIMM with support for expansion up to 32 GB. Dual 2.5GbE: Two built-in 2.5GbE RJ-45 network ports provide fast wired connectivity. Dual M.2 NVMe Slots: Two M.2 2280 slots support compatible NVMe SSD caching and SSD storage pools. Expandable Platform: Supports up to 15 drive bays with two DX525 expansion units and includes a PCIe Gen3 x2 network upgrade slot. Technical Specifications Component Specification Synology Model DiskStation DS1525neo+ Produ Type 5-Bay Network Attached Storage Processor AMD Ryzen V1500B CPU Cores / Threads 4 Cores / 8 Threads CPU Architecture 64-bit CPU Frequency 2.2 GHz System Memory 4 GB DDR4 non-ECC SODIMM Pre-Installed Memory 4 GB × 1 Memory Slots Maximum Memory 32 GB (16 GB × 2) SATA Drive Bays 5 × 3.5-inch SATA HDD or 2.5-inch SATA SSD M.2 Slots 2 × M.2 2280 NVMe SSD M.2 Functions SSD Cache and SSD Storage Pool with Compatible SSDs Maximum Drive Bays 15 with 2 × Synology DX525 Raw Capacity - 5 Bays Up to 120 TB Using 24 TB Drives Raw Capacity with Expansion Up to 360 TB Using 24 TB Drives Network Ports 2 × 2.5GbE RJ-45 USB Ports 2 × USB 3.2 Gen 1 Expansion Ports 2 × USB Type-C Expansion Ports PCIe Expansion 1 × PCIe Gen3 x2 Network Upgrade Slot 10GbE Upgrade Synology E10G22-T1-Mini Supported, Sold Separately Supported RAID Types Synology Hybrid RAID, Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10 Maximum Single Volume Size 108 TB; Up to 200 TB with 32 GB Memory Operating System Synology DiskStation Manager (DSM) System Fans 2 × 92 mm Fan Modes Full-Speed, Cool, Quiet Noise Level 22.60 dB(A) Power Adapter 120 W Dimensions 166 × 230 × 223 mm Weight 2.67 kg Operating Temperature 0°C to 40°C Hardware Warranty 3 Years Compatibility & Important Information The DS1525neo+ is supplied with one 4 GB DDR4 non-ECC SODIMM module and supports memory expansion up to 32 GB. The DS1525neo+ supports compatible Synology ECC memory upgrade options, but ECC and non-ECC memory modules must not be mixed. For multi-module memory configurations, Synology requires installed memory modules to be identical and share the same model number. Compatible storage includes supported 3.5-inch SATA HDDs, 2.5-inch SATA SSDs and M.2 2280 NVMe SSDs. Storage drives are sold separately. Synology recommends checking the official compatibility list before purchasing HDDs or SSDs. M.2 SSD slots do not support hot swapping. Compatible NVMe SSDs can be used for SSD cache or supported M.2 storage pools. Expanding beyond five drive bays requires Synology DX525 expansion units. Up to two DX525 units are supported for a maximum of 15 drive bays. The optional Synology E10G22-T1-Mini network module can add a 10GbE RJ-45 connection and is sold separately. Package Contents Main Unit × 1 Accessory Pack × 1 AC Power Adapter × 1 AC Power Cord × 1 RJ-45 LAN Cable × 2 Please to review Q: What processor does the Synology DS1525neo+ use? A: The DS1525neo+ uses an AMD Ryzen V1500B 64-bit processor with 4 cores, 8 threads and a 2.2 GHz frequency. Q: How much memory comes installed? A: The DS1525neo+ includes one 4 GB DDR4 non-ECC SODIMM module and supports up to 32 GB of memory. Q: Can ECC memory be installed? A: Yes. Synology lists compatible ECC memory upgrade options for the DS1525neo+. ECC and non-ECC modules must not be mixed, and multi-module configurations must use identical modules with the same model number. Q: How many storage drives can the DS1525neo+ support? A: The main unit has five SATA drive bays and two M.2 2280 NVMe slots. Up to two DX525 expansion units can increase the SATA drive-bay count to fifteen. Q: Can M.2 NVMe SSDs be used for storage? A: Compatible M.2 NVMe SSDs can be used for SSD caching and supported M.2 SSD storage pools. Q: Does the DS1525neo+ include 2.5GbE? A: Yes. It includes two built-in 2.5GbE RJ-45 network ports. Q: Can the network connection be upgraded to 10GbE? A: Yes. The DS1525neo+ includes a PCIe Gen3 x2 network upgrade slot and supports the optional Synology E10G22-T1-Mini 10GbE network upgrade module. Q: Are hard drives included? A: Storage drives are not listed in the official package contents and are purchased separately.