USED Seagate Skyhawk ST4000VX000 3.5" LFF 4TB SATA 5.9K RPM 64MB HDD(2AG166-500)
Product Specifications (ST4000VX000). Model Seagate SkyHawk (ST4000VX000). Capacity 4TB (Terabytes). In summary: You are looking at a 4TB drive that is well-suited for a dedicated surveillance or Network Video Recorder (NVR) system.