MK4309MAT

Toshiba Laptop Hard Drive 4.32Gb MK4309MAT

This drive came from a Toshiba Satellite 310CDS Laptop Computer with a broken screen. To test the drive I connected it to my desktop computer with a 2.5” to 3.5” converter and booted up the computer with an old Windows 98 boot up disk. I could read the drive with no problem. I have formatted the drive (FAT32) ready for an operating system to be installed. There were no problems formatting the drive. This will make an excellent replacement drive for an older laptop or could be put in an external case to make a handy portable drive. This is a small drive by today’s standards.

MK4309MAT

2.5" Hard Disk Drive ---8.45mm height, 4.32GB

Basic specifications

Formatted Capacity 4.32GB
Number of Disks 2
Number of Data Heads 4
Number of Cylinders 8,880
Bytes per Sector 512B
Interface AT(ATA-2/ATA-3/ATA-4)
Functional Specifications
Access Time Track-to-Track 3ms
Average 13ms
Maximum 25ms
Average Latency 7.14ms
Rotational Speed 4,200rpm
Data Transfer
Rate Internal 66.2–110.3Mb/s
Buffer to Host 16.6MB/s (PIO Mode-4, DMA Mode-2)
33.3MB/s (Ultra DMA Mode-2)
Buffer 512KB
Interleave 1:1

Reliability Characteristics

MTTF 300,000H
Power Specifications
Allowable Voltage +5V +5/-8%
Power
Consumption Starting 3.3W
Seeking 2.6W
Reading/Writing 2.3W
Idle 0.85W
Stand-by 0.3W
Sleep 0.1W
Power Consumption Efficiency Index* 0.196W/GB (Class E)

Mechanical Specifications

Dimensions Height 8.45mm
Width 70mm
Depth 100mm
Weight 95g

Environmental Limits

Temperature Operating 5–55°C
Non-Operating -20–60°C
Humidity
(No condensation) Operating 8–90%R.H.
Non-Operating -90%R.H.
Vibration Operating 4.9m/s2 (0.5G)
Non-Operating 49m/s2 (5G)
Shock Operating 1,470m/s2 (150G)
Non-Operating 4,900m/s2 (500G)
Bios Setup
Number of Logical Cylinders 8,944
Number of Logical Heads 15
Number of Logical Sectors per track 63
Number of Sectors(LBA mode) 8,452,080