Western Digital 4TB WD Red Plus NAS Internal Hard Drive HDD – 5400 RPM, SATA 6 Gb/s, CMR, 64 MB Cache, 3.5″ – WD40EFRX

About this item Available in capacities ranging from 1-14TB with support for up to 8 bays 5400RPM performance class Supports up to 180 TB/yr workload rate*| * Workload Rate is defined as the amount of user data transferred to or from the hard drive. Workload Rate is annualized (TB transferred ✕ (8760 / recorded power-on hours)) NASware firmware for compatibility Small or medium business NAS systems in a 24×7 environment 3-year limited warranty This model uses CMR technology and is being renamed “WD Red Plus” to distinguish it from the current “WD Red” product, which uses SMR technology During this transition period, WD Red Plus devices may be delivered with a ”WD Red” label, but rest assured the device you are receiving will be the CMR-version of WD Red and can be confirmed by the model number Product information Technical Details Collapse all Summary Standing screen display size ‎3.5 Inches RAM ‎4 GB Hard Drive ‎4 TB Mechanical Hard Disk Other Technical Details Brand ‎Western Digital Series ‎WD40EFRX Item model number ‎WD40EFRX Hardware Platform ‎PC; Mac Operating System ‎NASware firmware Item Weight ‎0.317 ounces Product Dimensions ‎5.8 x 4 x 1 inches Item Dimensions LxWxH ‎5.8 x 4 x 1 inches Color ‎Red Flash Memory Size ‎4 TB Hard Drive Interface ‎Serial ATA-600 Hard Drive Rotational Speed ‎1 RPM Batteries ‎1 Product Specific batteries required. Department ‎hdd Manufacturer ‎Western Digital ASIN ‎B00EHBERSE Is Discontinued By Manufacturer ‎No Date First Available ‎September 3, 2013 Additional Information Customer Reviews 4.5 4.5 out of 5 stars 24,047 ratings 4.5 out of 5 stars Best Sellers Rank #58 in Internal Hard Drives Warranty & Support Amazon.com Return Policy:You may return any new computer purchased from Amazon.com that is “dead on arrival,” arrives in damaged condition, or is still in unopened boxes, for a full refund within 30 days of purchase. Amazon.com reserves the right to test “dead on arrival” returns and impose a customer fee equal to 15 percent of the product sales price if the customer misrepresents the condition of the product. Any returned computer that is damaged through customer misuse, is missing parts, or is in unsellable condition due to customer tampering will result in the customer being charged a higher restocking fee based on the condition of the product. Amazon.com will not accept returns of any desktop or notebook computer more than 30 days after you receive the shipment. New, used, and refurbished products purchased from Marketplace vendors are subject to the returns policy of the individual vendor. Product Warranty: For warranty information about this product, please click here [PDF ] Feedback Would you like to tell us about a lower price?