The DS923+ 4-Bay NAS Enclosure from Synology is a capable solution that can be adjusted and expanded as your needs change, with optional support for up to nine drives, faster networking, and two M.2 2280 NVMe PCIe 3.0 x4 SSD slots for caching or additional storage pools. Powered by Synology DiskStation Manager (DSM), it offers a flexible all-in-one solution for data sharing, synchronization, backup, and surveillance. The DS923+ is equipped with four drive bays that are capable of natively supporting 3.5" SATA III hard drives, as well as 2.5" SATA III hard drives and SSDs.

The DS923+ runs on Synology DiskStation Manager (DSM) OS, which is a browser-based operating system that helps to simplify managing your Synology NAS. Its CPU is a 2.6 GHz AMD Ryzen R1600 Dual-Core with a burst frequency of up to 3.1 GHz, and its 4GB of DDR4 RAM, which can be upgraded to 32GB, allows frequently used files and applications to be quickly accessed. This NAS is capable of sequential read speeds up to 625 MB/s and sequential write speeds up to 559 MB/s.

Also featured are two USB-A 3.2 Gen 1 ports that allow it to be connected to external storage or other USB devices, an eSATA port for the DX517 expansion unit, and network connectivity is achieved via the dual integrated Gigabit Ethernet ports that support link aggregation and failover, allowing your stored data to be shared with users throughout the network. For those who require RAID support, the DS923+ supports RAID 0, 1, 5, 6, and 10, as well Synology Hybrid RAID and Basic RAID, each of which offers performance, data redundancy, or a combination of both. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized.

The DS923+ is engineered to be energy efficient and its dual 92 x 92mm fans to help keep the system running cool at all times. The server supports numerous scheduled power on/off cycles and hard drive hibernation to further minimize power consumption and operation expenses.

The Synology DiskStation DS923+ 4-Bay NAS Enclosure operates on 100-240 VAC at 50/60 Hz and includes an accessory pack, an AC power adapter, an AC power cord, and two RJ45 LAN cables. It is protected by a limited 3-year warranty.

4 x 3.5/2.5" Bays | 2 x M.2 2280 Slots    2.6 GHz AMD Ryzen R1600 Dual-Core    4GB of DDR4 RAM    2 x Gigabit Ethernet Ports    2 x USB-A 3.2 Gen 1 | 1 x eSATA    RAID 0, 1, 5, 6, 10, Hybrid, Basic, JBOD    Sequential Reads up to 625 MB/s    Sequential Writes up to 559 MB/s    AES-NI Hardware Encryption Engine    Synology DiskStation Manager OS

The DS923+ comes out of the box with intuitive and comprehensive file management, media organization, and backup options, making it ideal for IT enthusiasts, creative professionals, and business owners looking for a powerful and compact storage system.

Up to 625 MB/s sequential read and 559 MB/s sequential write performance enable fast file sharing, syncing, streaming, and backup for multiple users.

Supports 4 x 3.5" or 2.5" SATA HDD/SSD, expandable to 9 drives with one Synology DX517 expansion unit

Up to 32GB of DDR4 ECC memory offers protection against potential crashes and inadvertent changes in data through automatic correction of data errors.

Two Gigabit RJ45 ports can be bonded using Link Aggregation to provide automatic network failover and load balancing.

Maximize return on investment by upgrading your storage platform as more demanding needs arise with two built-in M.2 NVMe SSD slots and an optional 10GbE RJ-45 Network Upgrade Module.

Safeguard your critical data with the powerful storage management features of Synology DSM, built on the advanced Btrfs file system.

Advanced snapshot technology provides schedulable and near-instantaneous data protection for shared folders and LUNs.

File and folder-level data restoration enables recovery of specific files or folders.

Flexible storage quota system helps admins manage available space by specifying storage limits for shared folders.

File self-healing detects and recovers corrupted files using mirrored metadata and RAID configurations.

Inline compression minimizes storage consumption and extends the life of drives by compressing data before it is written to the storage pool.

Synology DSM comes standard with a complete package of backup solutions available at no extra cost.

Active Backup Suite consolidates backup tasks and offers rapid restoration of Windows and Linux endpoints, VMs, Synology NAS, and SaaS applications.

Snapshot Replication creates point-in-time copies of shared folders and LUNs to protect them from accidental modifications or ransomware incidents.

Hyper Backup backs up your NAS data to multiple destinations securely and efficiently with integrity checks and powerful deduplication, compression, and versioning options.

C2 Storage for Hyper Backup offers a dedicated secure public cloud destination for Synology NAS backup data.

Synology's productivity suite provides a private cloud solution for on-site and remote workers to concurrently edit documents, share files, manage emails, send instant messages, and more.

Synology Drive is a cloud file management solution that supports file sharing, remote data access, cross-device and cross-site synchronization, on-demand file restoration, and backup.

The Synology Office extension lets users collaborate on documents, spreadsheets, and presentation slides in real time, supported by convenient options such as file versioning for easy restoration and password protection.

Synology Photos serves as a media organization hub for enthusiasts and professionals looking to efficiently manage and share their photos and videos through intuitive browsing options and secure sharing methods.

Synology Hybrid Share combines reliable on-premises storage and efficient syncing of shared folders in the cloud to enable seamless cross-site synchronization and local file access at LAN speed.

Synology Surveillance Station transforms the DS923+ into a powerful Network Video Recorder solution with support for up to 40 IP cameras.

8300+ supported camera models.

ONVIF support for a broader selection of cameras.

Private, subscription-free storage of recordings.

Access through web browsers, desktop clients, or mobile apps.

Event-based rules to trigger specific actions

Email, SMS, and push notification options

Your DS923+ can serve as virtual machine storage, VM backup server, and a lightweight container and VM host. It is fully certified as storage for VMware vSphere, Microsoft Hyper-V, Citrix XenServer, and OpenStack environments.

Synology Storage Console for VMware or Windows platforms lets you manage VM storage components directly from your hypervisor. VMware VAAI integration and Windows ODX help offload storage operations and speed up data transfer.

Host light containers and VMs for testing, sandboxing, and emergency recovery purposes with Docker and Synology Virtual Machine Manager, a native hypervisor that supports Windows, Linux, and Virtual DSM.

Related Questions and Answers

Q: 1. Is this NAS compatible with WD 20TB drives (WD201KFGX)?

A: The Synology DiskStation DS224+ 2-Bay NAS Enclosure, (B&H # SYDS224PLUS), is officially compatible with drives up to 16TB according to Synology's compatibility list. We could not guarantee that a larger drive would work.

Q: 2. Di I have to use the RAID or can I just have both drives set for storage?

A: The Synology DS923+ 4-Bay NAS Enclosure also supports the JBOD configuration, if you do not wish to use the drives in a RAID.

Q: 3. Will this accept 1tb mvne cards?

A: The Synology DS923+ 4-Bay NAS Enclosure will accept 1TB M.2 NVMe drives in its two M.2 NVMe drive slots.

Q: 4. How large can the NVME drives be and how much ram is needed to use the nvmes as cache based on the size?

A: The Synology DiskStation DS1823xs+ 8-Bay NAS Enclosure can use up to two 800GB NVME SSDs in it's two NVME slots as cache.

Q: 5. With all bays populated with 7200rpm 16GB+ disks, what temperature do the drives sit at? idle vs load? At loudest fan speeds.

A: Synology has not provided metrics on the amount of heat generated by the DiskStation DS1823xs+ 8-Bay NAS Enclosure.

Q: 6. Is Seagate HDD NAS 3.5" 20TB IronWolf Pro compatible with Synology DS923+ ?

A: The 20TB IronWolf Pro is not on Synology's compatibility list for the Synology DS923+ 4-Bay NAS Enclosure. The highest capacity Seagate drive on Synology's compatibility list is the 16TB SkyHawk AI 7200 rpm SATA III 3.5" Internal Surveillance HDD (OEM) (B&H #SEST16000VO2, https://bhpho.to/3Hbnyxm).

Q: 7. so by the tone of the first question, can I safely presume that this device is Mac compatible?

A: Yes, the Synology 16TB DS923+ 4-Bay NAS Enclosure Kit with Synology NAS Drives (4 x 4TB) is compatible with Macs.

Q: 8. Does the DS1823XS+ support 3rd party NVMEs? Also for storage pools? Otherwise going to buy the competition.

A: Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list, so although other brands will work they are not officially supported.

Q: 9. Can I back up another NAS I already own (DS1621+) to this NAS from a different physical location?

A: Yes, as long as the Synology DiskStation DS224+ 2-Bay NAS Enclosure is loaded with enough drive capacity to cover everything in the NAS you already own, it could work as a backup in a different physical location.

Q: 10. Does this include Hyper Backup - Synology’s built-in backup utility so I can backup this NAS to Backblaze B2?

A: Yes, the Synology DiskStation DS224+ 2-Bay NAS Enclosure can run Synology's Hyper Backup.