We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Silver 3.5 inch bare hard drive with 80 pin SCSI connector

Seagate

Seagate ST3300655LC 300GB 15000 RPM 16MB SCSI Ultra320 80pin 3.5" internal hard drive

SKU CH-JJXV-9S4T1 MPN ST3300655LC

A 300 GB, 15 000 RPM SCSI Ultra320 80-pin 3.5" internal hard drive with 16 MB cache

  • PackagingBare Drive
  • InterfaceSCSI Ultra320 80pin
  • Capacity300GB
  • NAND Flash Memory TypeHard Drive
  • RPM15000 RPM
  • Cache16MB
  • 15000 RPM spindle cuts average latency to 2 ms
  • 16 MB cache buffers bursts for smoother throughput
  • SCSI Ultra320 80-pin interface delivers 320 MB/s bandwidth
  • 300 GB capacity on perpendicular recording platters
  • 5-inch form factor fits standard server bays

Capacity and interface

This is a Seagate Cheetah 15K.5 desktop internal hard drive with 300GB capacity and a SCSI Ultra320 80pin interface. It spins at 15000 RPM and includes 16MB cache for enterprise workloads. The 3.5 inch form factor fits standard drive bays. The unit is supplied as a bare drive.

Enterprise workloads vs other needs

It suits administrators maintaining legacy SCSI storage arrays or servers that require the 80pin connection and 15000 RPM performance. Buyers who need a different interface or larger capacities should look at something else. The bare drive packaging means no cables or mounting hardware are included.

SCSI Ultra320 80pin interface

The single specification that decides compatibility is the SCSI Ultra320 80pin interface. Your host adapter or backplane must provide this exact connection for the drive to function. Verify the interface before purchase.

Highlights

  • 15000 RPM spindle cuts average latency to 2 ms
  • 16 MB cache buffers bursts for smoother throughput
  • SCSI Ultra320 80-pin interface delivers 320 MB/s bandwidth
  • 300 GB capacity on perpendicular recording platters
  • 5-inch form factor fits standard server bays

Specifications

BrandSeagate
SeriesCheetah 15K.5
ModelST3300655LC
PackagingBare Drive
InterfaceSCSI Ultra320 80pin
Capacity300GB
NAND Flash Memory TypeHard Drive
RPM15000 RPM
Cache16MB
Average Latency2ms
FeaturesImportant Warranty Information
This product is end-of-sale and no longer warranted by the manufacturer. Instead, warranties this product for one year from date of purchase. If you require warranty service after thirty days, please contact Customer Service, not the manufacturer.
Perpendicular recording technology for maximum capacity
Reduced RAID rebuild times
Highest reliability rating in the industry
Lower total cost of ownership (TCO)
Form Factor3.5"
Shipping weight1.36 kg
Package size244 × 226 × 69 mm

Questions about this item

How long before the 15000 RPM spindle hits its thermal limit under sustained writes?

The 2ms average latency spec is measured at steady-state temperature, so the drive is designed to maintain that figure continuously.

What noise and heat should I expect from the 15000 RPM mechanism running all day?

The 15000 RPM Cheetah 15K.5 runs hotter and louder than slower drives; plan for active airflow across the 3.5" chassis.

Which controller card or backplane do I already need for the SCSI Ultra320 80pin interface?

You need a SCSI Ultra320 host adapter or backplane with an 80-pin connector; the bare drive has no onboard controller.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.