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1. SPECIFICATIONS
1.1. Critical Item Definition
The dimensions of the IDE 4000 flash disk enable mounting in a standard 2.5”or 1.8” disk drive
bay, as described in Section 1.2.11.
Note: The information written in this document refers to both IDE 4000 2.5” and 1.8” unless
otherwise stated.
1.2. Characteristics
1.2.1. Interface Definition
The IDE 4000 supports the commands listed in Section 4, in compliance with ATA4 standards.
1.2.2. IDE Transfer Modes
The IDE 4000 supports the following transfer modes:
• PIO modes 0 through 4
• DMA modes 0 through 2
1.2.3. Performance
The IDE 4000 complies with the performance requirements described in Table 1.
Table 1: IDE 4000 Transfer Rates
Operation Burst Rate (MB/sec) Sustained
Rate (MB/sec)
Read 16.6 3.8
Write 16.6 3.4
Performance was measured on a system with the following configuration:
• Computer with ASUS P4T533-C motherboard and Intel 2.4 GHz processor
• Windows XP Professional operating system
• IDE transfer mode: Multiword DMA 2
• IDE 4000 disk capacity: 4GB
The HDTACH v2.61 benchmark utility was used to measure IDE 4000 performance. See
Figure 1 for measurement results.
5 Product Specification and User Manual IDE 4000 Flash Disk 34-PS-0304-00 Rev. 2.1