WDBNFA0000NBK-NESN | My Cloud Pro Series PR4100

Model: WDBNFA0000NBK-NESN
Processor: Intel Pentium N3710 Quad-Core 1.6 GHz
Memory: 4GB DDR3L SO-DIMM (up to 16GB)
Storage: 4 x 3.5"/2.5" SATA III bays
Network: 2 x Gigabit Ethernet
Dimensions: 192 x 170 x 232 mm
Weight: 3.6 kg (diskless)

Description
Reviews (1)

My Cloud Pro Series PR4100

Professional-Grade NAS for Collaboration

The Western Digital My Cloud Pro Series PR4100 (WDBNFA0000NBK-NESN) is a 4-bay diskless NAS powered by a 1.6 GHz Intel Pentium N3710 Quad-Core processor with 4GB DDR3L RAM (upgradable to 16GB). Designed for creative teams and small businesses, it supports seamless file sharing and editing via MyCloud.com or the My Cloud mobile app, with built-in hardware transcoding for 4K media streaming via Plex. It delivers read/write speeds up to ~353/335 IOPS in RAID 5.

Flexible Storage and Backup

Supporting four 3.5"/2.5" SATA III bays, the PR4100 accommodates up to 80TB (4x20TB) with RAID 0, 1, 5, 10, and JBOD configurations. It offers automatic backups with WD SmartWare Pro for Windows and Time Machine for macOS, plus cloud integration with Dropbox and Google Drive. Three USB 3.0 ports (one with one-touch import) enable external drive backups, and dual Gigabit Ethernet ports support link aggregation for enhanced performance.

Secure and Customizable

The PR4100 features 256-bit AES volume encryption and password protection for secure data access. Running My Cloud OS 3, it supports apps like Plex, Milestone Arcus (surveillance), and Dropbox for tailored workflows. Dual power supplies ensure uptime, and the front-panel LCD with scroll buttons simplifies setup and monitoring. A 2-month Adobe Creative Cloud Photography plan is included with registration.

Western Digital My Cloud Pro Series PR4100 WDBNFA0000NBK-NESN: All Features

Processor	Intel Pentium N3710 Quad-Core 1.6 GHz (up to 2.56 GHz burst)
Memory	4GB DDR3L SO-DIMM (upgradable to 16GB)
Storage	4 x 3.5"/2.5" SATA III bays
Ports	3 x USB 3.0 Type-A (1 front with one-touch import)
RAID Support	RAID 0, 1, 5, 10, JBOD
Software	My Cloud OS 3, Plex, Milestone Arcus, WD SmartWare Pro
Security	256-bit AES volume encryption, password protection
Compatibility	Windows 7+, macOS 10.8+, iOS, Android, DLNA/UPnP

Western Digital My Cloud Pro Series PR4100 WDBNFA0000NBK-NESN: All Specifications

Processor	Intel Pentium N3710 Quad-Core 1.6 GHz (2.56 GHz burst)
Memory	4GB DDR3L SO-DIMM (2 slots, up to 16GB)
Drive Bays	4 x 3.5"/2.5" SATA III (hot-swappable, tray-less)
Max Capacity	80TB (4 x 20TB drives)
RAID Support	RAID 0, 1, 5, 10, JBOD
File System	Internal: EXT4; External: NTFS, HFS+, FAT32, exFAT
Ports	3 x USB 3.0 Type-A (5 Gb/s, 1 front with one-touch import)
Performance	Read: ~353 IOPS, Write: ~335 IOPS (RAID 5, CIFS)
Encryption	256-bit AES volume encryption
Operating System	My Cloud OS 3
Power Supply	Dual 90W redundant, 100-240V AC, 50/60 Hz
Power Consumption	~30W (operation), ~12W (standby)
Cooling	2 x 92mm fans
Operating Temperature	0°C to 35°C
Non-Operating Temperature	-40°C to 70°C
Noise Level	~28 dB(A) (operation)
Dimensions (HxWxD)	192 x 170 x 232 mm
Weight	3.6 kg (diskless)
System Compatibility	Windows 7+, macOS 10.8+, iOS, Android, DLNA/UPnP
Certifications	FCC, CE, BSMI, VCCI, RCM
Warranty	2-year limited (diskless), 3-year limited (populated)
Package Contents	NAS, Ethernet cables, 2 x power cords, quick start guide