---
product_id: 14687191
title: "ST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive"
brand: "seagate"
price: "$165.06"
currency: USD
in_stock: true
reviews_count: 4
url: https://www.desertcart.us/products/14687191-st9120822a-momentus-5400-3-ultra-ata-100-120-gb-bulk
store_origin: US
region: United States of America
---

# 5400 RPM Speed 120 GB Capacity Ultra ATA/100 Interface ST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive

**Brand:** seagate
**Price:** $165.06
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate Your Storage Game!

## Quick Answers

- **What is this?** ST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive by seagate
- **How much does it cost?** $165.06 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/14687191-st9120822a-momentus-5400-3-ultra-ata-100-120-gb-bulk)

## Best For

- seagate enthusiasts

## Why This Product

- Trusted seagate brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Peace of Mind:** Comes with a 3-year warranty for worry-free usage.
- • **Unleash Speed:** Experience lightning-fast 5400 RPM spin speed for seamless performance.
- • **Generous Storage:** 120 GB capacity to store all your essential files and media.
- • **Reliable Performance:** 8 MB cache buffer ensures quick data access and retrieval.
- • **Versatile Compatibility:** Perfect for laptops, tablets, and external drives—your data, your way.

## Overview

The Seagate ST9120822A Momentus 5400.3 is a reliable 120 GB hard drive designed for mainstream laptops and portable devices, featuring a 5400 RPM spin speed, 8 MB cache, and Ultra ATA/100 interface, ensuring efficient data access and storage with a 3-year warranty.

## Description

SeagateST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive

## Features

- 5,400 RPM Spin Speed, 8 MB Cache Buffer
- Ultra ATA/100 Interface, 120 Gb Capacity
- Average latency 5.56 msec, Random read seek time 11.0 msec, Random write seek time 13.0 msec
- Applications; Mainstream laptops, Tablet PCs, External 2.5-inch hard drives, Printers and copiers, Non-mission-critical blade servers
- 3 Year Warranty

## Images

![ST9120822A Momentus 5400.3 Ultra ATA/100 120 GB Bulk/OEM Hard Drive - Image 1](https://m.media-amazon.com/images/I/41a3kKEOEIL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Super fast and quiet
  

*by R***A on Reviewed in the United States 🇺🇸 on November 11, 2007*

I had a Hitachi 80GB notebook hard disk on my MAC that developed bad sector and thus I had to look for a replacement. When asked my friends and some experts on what brnad would be best buy, they were 60-40 divided between Seagate and Hitachi. So, I decided to go with the brand with more votes. And I am glad that I purchased this one.After putting it on my MAC, I booted with the install hard disk and tried partitioning. Whala..the partitioning was done in a flash and I was ready to do the install. Also, it is dead quiet during operation. I found the install was also way faster than my previous experiences.After the install is over, my MAC now boots and responds faster than before and the only thing changed is the hard disk. So it is definitely this tine little notebook hard disk that did the trick. I would definitely recommed others to buy Seagate.Cheers,Rudra

### ⭐⭐⭐⭐⭐ 5.0 out of 5 stars







  
  
    Segate Momentus 120GB ATA-100 Drive
  

*by D***N on Reviewed in the United States 🇺🇸 on July 10, 2009*

I replaced a 40GB disk in my IBM laptop.  I was down to just 5GB of capacity left and I hate trying to figure out what to delete and what to save so I just wanted to move everything to a larger disk.  I picked the Momentus primarily for the larger size and since this laptop wasn't my main one I didn't want to go wild with capacity so the 120 GB size was just right.  It uses less power (lower current demands)then the original drive and therefore the laptop is now running cooler and quiter.  The install was quick and clean using a Acronis an attached USB drive for disk copy from the old disk to the new one.  The new disk is working great!

### ⭐⭐⭐⭐ 4.0 out of 5 stars







  
  
    Finally
  

*by A***R on Reviewed in the United States 🇺🇸 on March 19, 2009*

I intially order the wrong hard drive so this part is my fault.  But for him to get me the correct HD, it took about 6 weeks.  He was very very slow in getting back to me via of the email.  I wouldn't do business with him again .

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-05-23*