Western Digital Caviar WD307AA 30GB 5.4K 3.5" EIDE Hard Drive

Western Digital Part #/MPN: WD307AA

DiscTech Item #: WDC-WD307AA-RF-OE

  • Special Order - Ships in 5-10 business days
    Special Order - Ships in 5-10 business days

    This item has a lead time for fulfilment (as listed), this is approximate. Your credit card will be authorized in full on the day of ordering; it will not be charged until the day of shipment.


Capacity: 30GB

Speed: 5,400RPM

Interface Types: IDE ATA 3.5in

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Average Seek Time: 9.5 / 11.5

Electrical Interface: EIDE Ultra ATA100 100MBps

On-Board Cache: 2MB

Western Digital Caviar 30GB 5.4K 3.5" EIDE Hard Drive WD307AA - Refurbished

Western Digital Caviar 30GB 5400 RPM 3.5-Inch Enhanced IDE Hard Drive WD307AA - Refurbished

Physical Specifications
Formatted Capacity30,758 MB
Interface40-pin EIDE
Number of Disks3
Data Surfaces6
Number of Heads6
Bytes Per Sector512
User Sectors Per Drive60,074,754
Performance Specifications
Average Seek Read9.5 ms typical, 15 ms maximum
Average Seek Write11.5 ms typical, 17 ms maximum
Track-to-Track Seek2.0 ms typical, 5 ms maximum
Full Stroke Seek19 ms typical, 23 ms maximum
Average Latency5.5 ms (nominal)
Rotational Speed5400 RPM (nominal)
Buffer to Host66.6 MB/s (Mode 4 Ultra ATA) 33.3 MB/s (Mode 2 Ultra ATA) 16.6 MB/s (Mode 4 PIO) 16.6 MB/s (Mode 2 multi-word DMA)
Buffer to Disk157.98 Mbits/s minimum 271.0 Mbits/s maximum
Buffer Size2 MB

Weight: 1.8 lb

Warranty: 1 Year DiscTech


Condition Levels Explained

These products have had NO problems or failures, they merely have some usage. The product has been professionally returned to excellent condition. These items have been fully tested, formatted (if appropriate) &repackaged. Hard drives are fully vetted for surface defects and wear, only healthy disks are approved for resale to our customers. Please see our refurbishing process for more details. Watch a video about our refurbishing process

1 Year DiscTech Warranty

Product Warranties Explained

The product has a DiscTech warranty for the time period specified. View our limited warranty