Toshiba MQ04ABB400 2.5″ hard drive with a storage capacity of 4TB and featuring a SATA interface.
All information about the Toshiba MQ04ABB400 hard disk drive: technical parameters, failure symptoms, frequently asked questions, reviews, HDD repair and data recovery.

Toshiba MQ04ABB400 Technical Details:
Manufacturer:
Toshiba
Hard Disk Model:
MQ04ABB400
Disk Family:
MQ04ABB Series
Form Factor:
2.5″
Capacity:
4 TB (4,000,000,000,000 bytes)
Formatted Capacity:
Approximately 3.63 TB
Number Of Disks:
2
Number Of Heads:
4
Rotational Speed:
5400 RPM
Average Seek Time:
12.0 ms (read) / 13.0 ms (write)
Disk Interface:
Serial ATA-600 (SATA 6 Gb/s)
Buffer Size:
131072 KB (128 MB)
External Transfer Rate:
600 MB/s
Mean Time Between Failures (MTBF):
500,000 hours
Advanced Format:
512e (4K physical sectors)
Toshiba MQ04ABB400 Hard Drives:
- MQ04ABB400, AB00/JS000U, HDKFB25AZA01 T, Toshiba 4TB SATA 2.5″ Hard Drive
Toshiba MQ04ABB400 Failure Symptoms:
- Electrical Failure Symptoms:
Drive is powered, but shows no sign of function;
Disk knocking as the motor fails to spin;
Clicking sound as the heads search or initialize; - Mechanical Failure Symptoms:
Clicking, grinding sounds;
Completely quiet due to ” motor freeze”;
“music” tone as the disk is powered up; - Logical Failure Examples:
Accidental deletion, accidental format, file corruption, software bugs, file system corruption, viruses and malware, and many, many more. - Firmware Failure Symptoms:
drive powers up, but is not recognised by the computer;
Drive powers up, but is recognised wrongly, sometimes with nonsensical characters;
Drive freezes during booting up; - Bad Platter Area Symptoms:
Hard disk still accessible but appear to “hang” or “sluggish”;
Constant Cyclic Redundancy (CRC) errors;
Unable to access folders or files which could be seen; - Complex Failure Model
Toshiba MQ04ABB400 Data Recovery & HDD Repair:
When it comes to data recovery one of the most common problems Toshiba MQ04ABB400 hard drive experience is a burned circuit board (PCB). Therefore, if you need to replace the PCB, be sure to match the “PCB Number” of the current board, such as G0064A, etc.