KB 239036 - Storge Technologies
Storage Technologies
A quick reference for common storage technologies, interfaces, and form factors used in desktops, workstations, and enterprise servers.
A quick reference for common storage technologies, interfaces, and form factors used in desktops, workstations, and enterprise servers.
- HDD & SSD
The table below gives a comparative knowledge on HDD as well as SSD
|
Feature |
HDD (Hard Disk Drive) |
SSD (Solid State Drive) |
|
Technology |
Spinning magnetic platters |
Non‑volatile flash memory |
|
Typical Speed |
30–150 MB/s |
Up to ~14,900 MB/s read / 14,000 MB/s write (high‑end NVMe) |
|
Performance |
Slower |
Faster boot and data transfer |
|
Durability |
Lower due to moving parts |
Higher durability (no moving parts) |
|
Noise |
Mechanical noise present |
Silent operation |
|
Power Consumption |
Higher |
Lower |
|
Common Use |
Backups, archives, large media storage |
Operating systems, applications, gaming |
- Storage Interfaces
The different types of storage interfaces are listed below with a comparative knowledge.
|
Type |
Interface |
Form Factor |
Speed |
Common Usage |
Relative Cost |
|
NVMe |
PCIe |
M.2, U.2, U.3, AIC |
3.5 to 14GB/s |
Gaming PCs, Workstations, HPC |
50 - 4000 USD |
|
SATA |
SATA |
2.5", M.2 |
upto 550MB/s |
Consumer laptops and desktops |
20 - 150 USD |
|
SAS |
SAS |
2.5", 3.5" |
1.2GB/s to 2.4GB/s |
Enterprise servers and storage arrays |
200 - 1500 USD |
The images of SATA, SAS, & PCIe Interfaces are shared here for understanding.
- SATA (Serial Advanced Technology Attachment)
- SAS (Serial Attached SCSI (Small Computer System Interface))
- PCIe (Peripheral Component Interconnect Express)
- NVMe Form Factor types:
|
NVMe Type |
Interface |
Form Factor |
Speed |
Used In |
Cost |
|
M.2 NVMe |
PCIe (Gen3/Gen4/Gen5) |
Small module (stick form) |
Gen3 upto 3.5GB/s |
Laptops, desktops |
50 - 200 USD |
|
U.2 NVMe |
PCIe (NVMe) |
2.5‑inch enterprise SSD |
3.5GB/s to 7GB/s |
Enterprise servers |
300 - 900 USD |
|
U.3 NVMe |
NVMe / SATA / SAS compatible |
Enterprise drive |
7GB/s to 14GB/s |
Data centers |
500 - 2000 USD |
|
PCIe (AIC) NVMe |
PCIe slot |
Add‑In expansion card |
7GB/s to 15GB/s |
Workstations, HPC servers |
800 - 4000 USD |
- The images of different form factors of NVMe SSDs are shared below for understanding.
- M.2 NVMe SSD (Most Common)
- U.2 NVMe
SSD (Enterprise Servers)
- U.3 NVMe SSD
(Enterprise Drive)
- PCIe NVMe
(AIC – Add-In Card)
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