Western Digital Purple WD10PURX 1.0TB 3.5\" Surveillance Hard Drive...This Western Digital Purple WD10PURX Hard Drive is a reliable and efficient option for your surveillance needs. With a storage capacity of 1TB and a cache of 64MB, it can store a vast amount of data. It has a form factor of 3.5 inches and supports HDD drive types only.The item measures 147mm in length, 101.6mm in width, and has a height of 26.1mm. It is a unit from Thailand and supports the unit type of HDD. The model number is WD10PURX. This internal hard disk drive is suitable for use in computers and other compatible devices.