Internal Solid State Drive (SSD). PCIe 4.0 x4 with NVMe. Up to 7400 MBps. Up to 6900 MBps. Up to 650,000 IOPS. Up to 660,000 IOPS. 1,600,000 hours. 2 PCIe 4.0 SSD adopts the PCIe Gen4x4 interface. It features read/write speeds of up to 7,400/7,000 MB/s and a maximum storage capacity of 8TB. It is equipped with TEAMGROUP’s exclusive patented heat dissipating graphene label less than 1mm thick, which is also compatible with the onboard M. 2 heat sink for superior heat dissipation performance to that of the native motherboard heat sink alone. It is undoubtedly the best enhancement to native heat sinks. RH 90% under 40 celsius degree. 1,500G / 0.5 ms. 802,000 Hz / 20G.