Solid State Drives (SSDs), Hard Disk Drives (HDDs)

Part Number	Description / PDF	Quantity
SFSA4096U1BR4TO-I-MS-236-STD Swissbit	SSD 4GB MSATA SLC SATA II 3.3V	28
SM689GXC AEST Silicon Motion	FERRI PCIE BGA PCIE 3D TLC NAND	0
SFSA240GM1AA4TO-C-HC-616-STD Swissbit	SSD 240GB M.2 MLC SATA III 3.3V	0
APSDM004GA3AN-2ATW Apacer	SSD 4GB SLC	0
AF32GSSIA-OEM ATP Electronics, Inc.	SSD 32GB M.2 SLC SATA III	3
SNE1B128GTXDWBA0SSA0 TDK Corporation	INDUSTRIAL SSD, M.2 MODULE, 128G	1
SM651GE4 BD Silicon Motion	FERRISSD BGA SSD SATA SLCMODE 4G	0
SDE1B016GTXDCB00ESA0 TDK Corporation	INDUSTRIAL SSD, 16GB, SLC, 2.5",	0
GF3B8000UP Micronet	8TB 7200RPM USB 3.0 - BLACK	50
SHE1B016GTXDWB00SSA0 TDK Corporation	INDUSTRIAL SSD, SLIM-SATA, 16GB,	0
SM611GXB BD Silicon Motion	FERRISSD BGA SSD SATA MLC 32GB C	0
MB611GX4DBD1 Silicon Motion	FERRI SSD MODULE MO297 SATA MLC	0
SNE1B032GTFDWB00SSA0 TDK Corporation	INDUSTRIAL SSD, M.2 MODULE, 32GB	5
MB5HFRAFZ-42000-2	512GB 3D M.2 2242 SATA III I-TEM	5
VSFB18PI032G-100 Virtium	SSD 32GB 1.8" SLC SATA III	4
DE64FQQFC-35000-2	64GB 3D 2.5" SSD SATA III I-TEMP	0
GF3B14000UP Micronet	14TB 7200RPM USB 3.0 - BLACK	50
SME1B128GTKDWB00SSA0 TDK Corporation	INDUSTRIAL SSD, MSATA, 128GB, PS	4
VSF202CC030G-100 Virtium	SSD 30GB SLIM-SATA MLC 5V	0
SDE1B256GTFFCB00ESA0 TDK Corporation	INDUSTRIAL SSD, 256GB, MLC,2.5",	0

Solid State Drives (SSDs), Hard Disk Drives (HDDs)

1. Overview

Storage devices are critical components in modern computing systems, enabling persistent data retention and rapid access. Memory cards (e.g., SD/microSD) provide portable storage for consumer electronics. SSDs use NAND flash memory for high-speed non-volatile storage, while HDDs rely on magnetic spinning platters for cost-effective large-capacity storage. These technologies collectively support applications ranging from personal devices to enterprise data centers.

2. Main Types and Functional Classification

Type	Function Characteristics	Application Examples
SD Cards	Standardized portable storage with varying speed classes	Digital cameras, laptops
microSD	Compact form factor for mobile devices	Smartphones, drones
CF Cards	High durability for professional imaging	DSLR cameras, industrial equipment

3. Structure and Components

SSDs consist of a controller (managing data flow), NAND flash memory chips (storing data), and DRAM cache (accelerating access). HDDs contain magnetic platters (data storage), read/write heads (data access), spindle motors (platter rotation), and actuator arms (head positioning). Memory cards integrate flash memory with controllers in compact packages.

4. Key Technical Specifications

Parameter	Importance	SSD Example	HDD Example
Sequential Read/Write Speed	Affects data transfer efficiency	3500-7000 MB/s (NVMe)	100-200 MB/s (SATA)
Random 4K IOPS	Measures small-file access performance	50,000-100,000 IOPS	100-200 IOPS
Durability (TBW)	Indicates lifespan	150-1500 TBW	Relevant but less quantified

5. Application Fields

SSDs: Gaming PCs, enterprise servers, cloud storage
HDDs: NAS systems, surveillance storage, archival
Memory Cards: Action cameras, IoT devices, automotive systems

6. Leading Manufacturers and Products

Manufacturer	Product Example	Key Features
Samsung	980 Pro NVMe SSD	PCIe 4.0, 7000 MB/s
Western Digital	Ultrastar DC HC550 HDD	18TB, helium-sealed
SanDisk	Extreme microSDXC	170MB/s, UHS-I

7. Selection Recommendations

Consider interface compatibility (e.g., SATA vs NVMe), required throughput, endurance ratings, and cost-per-GB metrics. For enterprise environments prioritize MTBF and error correction features. Consumer applications should balance capacity and speed class (e.g., V30/U3 for 4K video recording).

8. Industry Trends

3D NAND stacking enables terabit-scale SSDs, while PCIe 5.0 interfaces will double current speeds. HDDs adopt SMR and HAMR technologies to reach 50+TB capacities. Memory cards transition to SD Express (PCIe Gen3) for 985MB/s performance. Hybrid storage solutions combining fast SSD caching with high-capacity HDDs gain traction in data centers.