Equipped with five 4TB SATA 3.5" standard NAS hard drives in its five 3.5"/2.5" drive bays, the ioSafe 1517 20TB 5-Bay NAS Array (5 x 4TB) is engineered to protect business-critical data, enhance recovery times, and deliver strong reliability while protecting up to 20TB of data from natural and man-made disasters. It is fireproof up to 1550°F for up to 30 minutes and also protects data from while fully submerged in up to 10' of fresh or salt water for up to 72 hours. Cloud-enabled and powered by Synology's DiskStation Manager operating system, the 1517 NAS includes apps for collaboration, file syncing and sharing, video surveillance, and more.

ioSafe's 1517 has five drive bays, each of which natively supports 3.5" SATA hard drives, as well as 2.5" SATA hard drives and SSDs. It is powered by a 1.7 GHz Annapurna Labs Alpine AL-314 Quad-Core processor, which will allow you to run multiple functions simultaneously, while 2GB of DDR3L RAM will allow quick access to frequently used files and programs. Also featured are two USB 3.0 Type-A ports and two eSATA ports which allow it to be connected to your Windows or Mac system. Network connectivity is achieved via four Gigabit Ethernet ports with Link Aggregation and Failover support, or a separately wireless dongle for Wi-Fi connectivity.

The 1517 runs on Synology's DiskStation Manager (DSM) operating system, which helps simplify managing your NAS, as well as accessing and sharing data. A variety of RAID modes are supported, which help provide users with data redundancy, speed, or a combination of both. Supported RAID modes include RAID 0, 1, 5, 6, 10, Basic, and Synology Hybrid RAID. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized.

ioSafe has engineered this NAS to be energy efficient. Not only does it use dual 80 x 80mm fans to help keep the system running cool, the server supports numerous scheduled power on / off cycles and hard drive hibernation to further minimize power consumption and operational expenses. The 1517 operates on 100-240 VAC at 50/60 Hz and includes an accessory pack, a 200W AC power adapter, an AC power cord, and two RJ45 LAN cables. Protection is provided by a limited 5-year hardware warranty, along with five years of ioSafe's Basic Data Recovery Service (DRS). DRS includes free in-house data recovery and up to $2500 per TB coverage for third-party data recovery services.

20TB Storage Capacity    5 x 4TB SATA 3.5" HDDs    1.7 GHz Alpine AL-314 Quad-Core    2GB of DDR3L RAM    4 x Gigabit Ethernet Ports    2 x USB 3.0 Type-A | 2 x eSATA    RAID 0, 1, 5, 6, 10, Hybrid, Basic, JBOD    Hardware Encryption Engine    Fireproof to 1550°F for 30 Minutes    Waterproof up to 10' for 72 Hours

Purpose-built to keep on-premises data safe during building fires, the 1517 NAS protects data from temperatures up to 1550°F for 30 minutes per ASTM E119.

Designed to protect data from floods, sprinklers, and fire department's hoses, the 1517 keeps data safe during periods of complete submersion in fresh or salt water up to a 10' depth for 72 hours.

Optional floor and rack mount kits enable the 1517 to be bolted down to protect against theft. Additionally, the kit enables access to the ports and drive bays to be blocked to prevent tampering.

Maximize uptime and minimize costly service interruptions. Synology High Availability (SHA) makes it simple to combine two NAS servers into a single high availability cluster with automatic failover.

Keep data safe and secure with military-grade hardware encryption, built-in vulnerability scanning and remediation, secure data transmission, login protection, and more.

Use the 1517 as a secure backup target or as primary storage with data backed up to another ioSafe or Synology device, an rsync server, Microsoft Azure, S3-compatible storage, or other cloud services.

Easily and securely synchronize data across PCs, Macs, iOS and Android devices, and other NAS with either one-way or two-way syncing that supports file versioning, point-in-time recovery, compression, and encryption.

Share files easily, quickly, and securely across multiple platforms with optionally password-protected or time-limited download links and built-in support for FTP, WebDAV, CalDAV, and CardDAV services.

Protect your home or business. Create an easily managed, reliable, and intuitive monitoring system that delivers secure storage for recordings. With Synology Surveillance Station, you can monitor streams from multiple cameras in real time and manage and analyze recordings. Mobile support enables you to take proactive camera control on the go using iOS or Android devices. With support for more than 6000 IP camera model and integration with I/O modules and door controllers, the 1517 can be used to build a complete security system for your premises.

Boost productivity. Synology Office enables you to create documents and spreadsheets, work collaboratively, chat with colleagues, and is compatible with Microsoft Word and Excel.

Includes a standard 5-year hardware warranty and five years of ioSafe's Basic Data Recovery Service (DRS) that covers the cost of third-party forensic data recovery up to $2500 per TB.

Related Questions and Answers

Q: 1. What is the difference between the LinkStation 720 and the 720 SoHo?

A: The Buffalo SoHo 720DB comes with a 3-year limited manufacturer's warranty, while the Buffalo 720DB comes with a 2-year limited manufacturer's warranty.

Q: 2. can I access files using an iphone or ipad (e.g., stored photos)?

A: Yes, you can access the Synology 64TB DS923+ 4-Bay NAS Enclosure Kit with Synology NAS Drives (4 x 16TB), B&H # SYDS92364TBD, from iOS devices by downloading the Synology App from the iOS App Store.

Q: 3. Can this be configured for Raid 5?

A: Yes, the Synology 16TB DS923+ 4-Bay NAS Enclosure Kit with Synology NAS Drives (4 x 4TB) can be configured for RAID 5.

Q: 4. what is the transfer rate for this model WDBVXC0040HWT-NESN 4tb?

A: The theoretical maximum for this NAS would be 1 Gbps which translates into 125 MB/s.

Q: 5. How quiet is it?

A: Synology has not listed a noise rating for the Synology DS923+ 4-Bay NAS Enclosure. Equipped with four hard drives and two 92mm fans, a fair amount of operational noise should be anticipated.

Q: 6. Warranty?

A: This product has a manufacturer's Limited 2-Year Warranty.

Q: 7. Would this be compatible with Mac OS Catalina

A: The WD My Cloud Home 8TB 1-Bay Personal Cloud NAS Server is compatible with MacOS Catalina.

Q: 8. Is this compatible with MacOS 11.2.1 Big Sur?

A: Yes, this item would be compatible with MacOS 11.2.1 Big Sur.

Q: 9. Can I install Plex on it?

A: Yes, you will be able to run Plex on the WD My Cloud Home 6TB 1-Bay Personal Cloud NAS Server (1 x 6TB).

Q: 10. I have two WD My Book Live, they need to be connected to ethernet port of the router and then via web interface you can create users and shares and define which user has full, read-only or no access to any created share - is it possible to do the same with WD My Cloud Home? I looked at the user manual and there is only some vague explanations of option to create users, no interface screenshots, etc.

A: Yes, the mycloud would be able to create users and shares and define which user has full, read-only or no access to any created share.