New open box. The WD Red Plus 4TB NAS Hard Drive is a reliable and high-performance internal HDD designed for use in NAS systems. With a storage capacity of 4TB, this SATA 6Gb/s hard drive from Western Digital offers fast data transfer speeds and ample storage space for all your files and media. The red color indicates that it is specifically designed for NAS systems, making it an ideal choice for those looking to enhance their storage capabilities. Made in Thailand, this hard drive is a durable and efficient storage solution for any home or office setup.