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Security Harddisk Drives Vs Flash Drives

Flash Memory: Theory and Applications

Various Flash Drives


Mobile device memory

Used in cellular phones, digital cameras, MP3 players, PDAs (Personal Digital Assistant) and camcorders.

Some of the products are listed:

Product Brand Performance Power Required
SANDISK 1GB SECURE DIGITAL CARD (SDSDB-1024-A10) SANDISK Ref: http://www.flash-memory-store.com/1gbsd.html SD Card packaging includes a new high performance, nine-pin SD interface that enables data transfer rates of up to 10 megabytes per second. -Voltage: 2.7 to 3.6 volts -Current @ 3.3V: Read <33mA, Write <35mA -High Performance Write Current 65mA at 5V; 50 mA at 3.3V rms AA
LEXAR 512MB SECURE DIGITAL CARD (SD512-231) LEXAR Ref: http://www.flash-memory-store.com/lex51secdigs.html -Sustained Write Capability (Host to Flash, 1X=150KB/sec., 32X=4.8MB/sec) -Data Transfer Rate to/from Host (Up to 12MB/sec. burst) -Voltage: 2.7 to 3.6 volts -Current @ 3.3V: Read <33mA, Write <35mA
1GB DANE-ELEC SECURE DIGITAL CARD DANE-ELEC Ref: http://www.flash-memory-store.com/1gb-dane-elec-secure-digital.html -Sustained Write Capability (Host to Flash, 1X=150KB/sec., 32X=4.8MB/sec) -Data Transfer Rate to/from Host (Up to 10MB/sec. burst) - Voltage: 2.0 to 3.6 volts (SDLV low voltage 1.6-3.6V)
512MB KODAK SECURE DIGITAL CARD KODAK Ref: http://www.flash-memory-store.com/ko51sediscas.html -Sustained Write Capability (Host to Flash, 1X=150KB/sec., 32X=4.8MB/sec) -Data Transfer Rate to/from Host (Up to 10MB/sec. burst) - Voltage: 2.0 to 3.6 volts (SDLV low voltage 1.6-3.6V)

Mobile device memory manufacturers are:

  1. SanDisk
  2. Lexar
  3. Dane-Elec
  4. Kodak
  5. Kingston
  6. Toshiba
  7. Hitachi
  8. ATP
  9. Samsung

Compact flash memory

Used in Digital Cameras, Digital Camcorders, Data storage, PDAs and Digital Music Players.

Some of the products are listed:

Product Brand Performance Power Required
8GB SANDISK ULTRA II 60X COMPACT FLASH CARD SANDISK Ref: http://www.flash-memory-store.com/sand-cf-ult2-8gb.html -Minimum Sustained Write Speed: 60x (9 MB/sec) -Minimum Sustained Read Speed: 66x (10 MB/sec) -Voltage 3.3V 5% or 5V 10% -High Performance Read Current 34mA at 5V; 21 mA at 3.3V rms -High Performance Write Current 34mA at 5V; 21 mA at 3.3V rms
LEXAR 4GB 100X COMPACT FLASH CARD PROFESSIONAL SERIES (CF4GB-80-380) LEXAR Ref: http://www.flash-memory-store.com/le4gb40xcofl.html -Sustained write capability (host to flash) 1X=150KB/sec., 40X=6.0MB/sec., 80X=12MB/sec. -Start-Up Time (sleep to read/write) < 10 m/sec. -Voltage 3.3V 5% or 5V 10% -High Performance Read Current 65mA at 5V; 50 mA at 3.3V rms -High Performance Write Current 65mA at 5V; 50 mA at 3.3V rms
1GB Dane-Elec XS 45X Compact Flash Card (DA-CF1GB-XS) DANE-ELEC Ref: http://www.flash-memory-store.com/1gb-dane-elec-xs.html -35x (5.25 MB/sec) in write mode, up to 45x in read mode -Standby/write: 2.5 ms max. -Standby/read: 2.0 ms max. - Voltage 3.3V 5% or 5V 10% -High Performance Read Current 65mA at 5V; 50 mA at 3.3V rms -High Performance Write Current 65mA at 5V; 50 mA at 3.3V rms
2GB ATP COMPACT FLASH CARD (CF) ATP Ref: http://www.flash-memory-store.com/2gb-atp-compact-flash-card.html -256MB, 512MB--45X 1GB, 2GB--60X Up to 10MByte/s or 80Mbit/s in data transfer rate - Supply voltage CF: 3.0-3.2V or 4.5-5.5V -Low Power Consumption (<50mA)

Compact flash memory manufacturers are:

  1. SanDisk
  2. Lexar
  3. Dane-Elec
  4. ATP
  5. Canon

Microtech

  1. Kingston
  2. Transcend

USB Flash drives

Accessing and transporting data has never been easier with USB Flash Drives. These devices plug directly into virtually any USB port and can support up a massive 4GB of disk space, all in a compact size. All USB Flash Drives are "plug and play" compatible devices, so the computer will automatically detect your USB Flash Drive.

Some of the products are listed:

Product Brand Speed Product Specifications
1GB SANDISK CRUZER SANDISK Ref: http://www.flash-memory-store.com/1gb-sandisk-cruzer-profile.html -Write speed (minimum) = 5.0MB/Sec -Read speed (minimum) = 8.0MB/Sec - Distinctive ergonomic design for easy access and swiping -Sensor response to go/no state = 1 sec delay or less -Authentication process <3 sec -Hi-Speed USB 2.0 certified (backwards compatible with all USB 1.1 ports)
LEXAR 1GB HIGH-SPEED USB 2.0 JUMPDRIVE LEXAR Ref: http://www.flash-memory-store.com/jd1gb231.html -Read speed =6.0 MB/s -Write speed=4.5 MB/s -Compatible with the USB 2.0 specification -Windows 98SE/Me/2000/XP -Mac OS X, Mac OS 8.6 or above -One available USB port
4GB APACER HANDY STENO 200X ULTRA HIGH-SPEED USB 2.0 FLASH DRIVE APACER Ref: http://www.flash-memory-store.com/4gb-apacer-handy-steno-ht203-133x.html -Write Speed around 14MB/sec. -Read Speed around 20MB/sec. - No driver required for Windows 2000 / ME / XP, Mac. OS 8.6,Linux Kernel 2.4.0 or above -Support Windows 98 / 98 SE with device driver -Double side LED indicates while data is transferred in every direction.

The USB flash drives manufacturers are:

  1. SanDisk
  2. Lexar
  3. Dane-Elec
  4. Apacer
  5. QMemory
  6. Samsung
Security Harddisk Drives Vs Flash Drives

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