Western Digital Red Plus 4TB WD40EFPX / 24x7 / NAS 256MB / 5400rpm / CMR WD NAS
Model Number: WD40EFPX. Capacity: 4TB. Buffer Size: 256MB. Built for Optimum NAS Compatibility. Manufacturer: WESTERN DIGITAL. Gross Weight: 0.58Kg. Tackle Intensity with WD Red Plus. Series: Red Plus.