Seagate Technology KU018J2 hard drive specifications

Maxtor Atlas 10K III Hot-Swap Hard Drive (18.4GB, Ultra320 SCSI)

The Atlas 10K III-Ultra320 is the next-generation Maxtor SCSI hard disk drive providing full implementation of all mandatory and optional Ultra320 SCSI interface features. These features include Adaptive Active Filtering (AAF), Packetization and Quick Arbitration and Selection (QAS). Adaptive Active Filtering is a Maxtor technology innovation that allows the drive to adapt to changing system configurations and components while optimizing signal quality. This translates into lower error rates, easier integration, and increased bus efficiency for optimal system performance. Ultra320 SCSI provides the highest ever data bus bandwidth and is designed to handle the most demanding enterprise server applications. Enterprise computer users will now have faster, more reliable data transfer rates for optimal use in: multi-stream video and audio, data warehousing applications, web servers, RAID applications, large file transfers, non-linear editing, high-end graphics, electronic cinema, scientific data processing, video servers, image processing, high-definition playback, super computer, and 3D animation. The Atlas 10K III-U320 has proven full interoperability with major SCSI and SCSI RAID controller manufacturers and it is backwards compatible with prior SCSI interface standards.

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Device Type
Hard drive - Hot-swap hard drive

4 in

5.8 in

1 in

1.5 lbs

Hard Drive

Form Factor

18.4 GB

Interface Type
Ultra320 SCSI

80 pin Centronics (SCA-2)

SCSI Signaling Type
Low Voltage Differential (LVD)

Buffer Size
8 MB

Temperature sensor, Data Protection System (DPS), Shock Protection System (SPS), Adaptive Active Filtering (AAF)

Compliant Standards
S.M.A.R.T., 360-bit Reed Solomon ECC


Drive Transfer Rate
320 MBps

Internal Data Rate
77.8 MBps

Seek Time
4.5 ms (average) / 11 ms (max)

Track-to-Track Seek Time
0.3 ms

Average Latency
3 ms

Spindle Speed
10000 rpm


Storage Hard Drive / Recoverable Errors
10 per 10^12

Storage Hard Drive / Non-Recoverable Errors
10 per 10^16

Storage Controller


Expansion / Connectivity

1 x Ultra320 SCSI - 80 pin Centronics (SCA-2)

Compatible Bays
1 x Hot-swap - 3.5" x 1/3H

Compatible Slots
x None


Power Device

Manufacturer Warranty

Service & Support
5 years warranty

Service & Support Details
Limited warranty - 5 years

Environmental Parameters

Min Operating Temperature
41 �F

Max Operating Temperature
131 �F

Humidity Range Operating
5 - 95%

Shock Tolerance
250 g @ 2ms half-sine pulse (non-operating)

Vibration Tolerance
0.5 g @ 5-500 Hz (operating) / 2 g @ 5-500 Hz (non-operating)