常用存储硬件标准

TIP

SSD? HDD? SATA? M.2? PCIe? AHCI? NVME? USB?

硬盘

类型

SSD

颗粒
简称全称规格
SLCSingle-Level Cell1 bit per cell
MLCMulti-Level Cell2 bit per cell
TLCTriple-Level Cell3 bit per cell
QLCQuad-Level Cell4 bit per cell

HDD

RPM (Revolutions per minute)

  • 5400 RPM
  • 7200 RPM
  • 10000 RPM

接口

  • SATA
  • M.2
    • B key / Socket2
    • M key / Socket3
    • B & M key

M2_Edge_Connector_Keying

  • PCIe

总线

SATA
版本理论速度
SATA 3.0600MB/S
SATA 2.0300MB/S
SATA 1.0150MB/S
PCIe
版本带宽Column 0Column 1Column 2Column 3Note
x1x2x4x8x16
31GB/s2GB/s4GB/s8GB/s16GB/s硬盘
42GB/s4GB/s8GB/s16GB/s32GB/s硬盘
54GB/s8GB/s16GB/s32GB/s64GB/s
68GB/s16GB/s32GB/s64GB/s128GB/s

协议

  • AHCI
  • NVME

尺寸

  • 2.5 英寸(无需单独供电)
  • 3.5 英寸(需单独供电)

TIP

硬盘速率快慢主要看总线速度


USB

物理接口

协议

协议
协议速度别名
USB 2.060MB/s
USB 3.0500MB/S (5Gbps)USB 3.2 Gen 1
USB 3.11212.12MB/s (10Gbps)USB 3.2 Gen 2
USB 3.22424.24MB/s (20Gbps)USB 3.2 Gen 2x2
USB45GB/s (40Gbps)

本文由Tsanfer's Blogopen in new window 发布!