Western Digital Red 4TB Hard Disk

Western Digital WD Red NAS Hard drive 4TB internal 3.5" SATA 6Gb/s buffer 64 MB WD40EFRX

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Western Digital 4Tb 5400Rpm 64Mb Sata 6 Gb/S - Wd Red

Specifications Overview

Model	WD40EFRX
Capacity	4000 GB
Cache	64MB
RPM	5400
Interface	SATA 6 Gb/s
Form Factor	3.5"

	Old Name	Current Name	Branding	Data Speed	Port
USB 2.0	USB 2.0	USB 2.0	Hi-Speed USB	480 Mbit/s	diverse
USB 3.0	USB 3.1 Gen 1	USB 3.2 Gen 1x1	SuperSpeed USB	5 Gbit/s	diverse
USB 3.1	USB 3.1 Gen 2	USB 3.2 Gen 2x1	SuperSpeed USB 10Gbps	10 Gbit/s	diverse
USB 3.2	USB 3.2 Gen 2x2	USB 4.0 Gen 2x2	USB4 20Gbps	20 Gbit/s	only USB-C
USB4	USB 4.0 Gen 3x2	USB4 1.0	USB4 40Gbps	40 Gbit/s	only USB-C
USB4v2	USB 4.0 Gen 4	USB4 2.0	USB4 80Gbps	80-120 Gbit/s	only USB-C

Western Digital Red 4TB Performance comparison with similar Hard Disk Drives

(Higher is better)

Western Digital Red 4TB Performance

Sequential read/write speed, Random 4K read/write speed

Seagate SkyHawk 1TB ST1000VX005 (60th)		101%
Western Digital Blue 6TB (60th)		101%
Seagate 3TB ST3000VN000 (60th)		101%
Western Digital Caviar Green 5TB (60th)		101%
Seagate Barracuda 4TB (60th)		101%
Seagate 10TB BarraCuda Pro 7200RPM (65th)		~
Seagate 4TB NAS ST4000VN000 (65th)		~
Western Digital Caviar Green 6TB (65th)		~
WD Purple 3TB WD30PURZ (65th)		~
Western Digital 500GB WD Black (65th)		~
Western Digital Red 4TB (65th)		100%
WD Purple 4TB WD40PURZ (71st)		98%
Toshiba DT01ACA050 500GB (71st)		98%
Western Digital SE 2TB (71st)		98%
Seagate 6TB BarraCuda Pro ST6000DM004 (71st)		98%
Western Digital RE 2TB Enterprise (75th)		97%
WD Black 4TB WD4001FAEX (76th)		96%
Western Digital 2TB WD Purple (77th)		93%
Hitachi HUA723030ALA640 3TB (78th)		92%
Western Digital Blue 3TB WD30EZRZ (78th)		92%
Seagate 8TB Barracuda ST8000DM004 (80th)		90%

View chart ►

Western Digital Red 4TB Price/Performance Analysis

Sequential read/write speed, Random 4K read/write speed vs Price

Price-to-Performance Analysis:

Fair value: 8.7% below average.
7 products offer better price-to-performance ratio.
Best alternative: WD Purple 4TB WD40PURZ offers 66.6% better value priced at $125.