55H49 – Dell PowerVault MD1200 3TB 7.2K SAS 3.5″ – 9ZM278-150, ST3000NM0023


(1 customer review)
SKU: 55H49 Categories: , , Condition: Used


Dell branded (non-generic) 3TB SATA HDD for your PowerVault MD1200 storage needs. The 55H49, 9ZM278-150, ST3000NM0023 is a 3TB 7.2k RPM SAS 6Gb/s hard drive for use specifically in Dell PowerVault MD1200 direct attached storage (DAS) arrays. Whether you’re upgrading your Dell PowerVault MD1200 DAS system or simply looking for a replacement hard drive, we have what you need. If you don’t see the part listed that you’re looking for, please use our Contact Us form; as we have many parts in inventory that are not listed. Please note that all Dell PowerVault hard drives, systems and parts are used / refurbished, fully-tested, and backed by a 60 day warranty.

55H49 – Dell PowerVault MD1200 3TB 7.2K SAS 3.5″ – 9ZM278-150, ST3000NM0023 Features

  • Best-in-class enhanced rotational vibration tolerance ensures consistent performance
  • Delivers proven reliability, with an MTBF of 1.4 million hours
  • Sixth-generation drive technology with SAS interface for 24×7 reliability
  • Reduces energy and cooling costs, with the lowest power consumption of any nearline 3.5-inch drive
  • Improved power and cooling efficiencies with low power consumption and on-demand PowerChoice™ technology based on T10/T13 power management standards
  • Enhanced error correction, super parity and end-to-end SAS-based data integrity for accurate data storage
  • Robust performance with dual processor and ramp load technologies

Compatible with the MD1200 series PowerVault system.

PowerVault MD1200 55H49 3TB SAS HDD Applications – 9ZM278-150, ST3000NM0023

Dell PowerVault MD1200 SAS HDD with part numbers 55H49, 9ZM278-150 & ST3000NM0023 is best suited for higher-capacity environments to help realize cost and capacity benefits. Sequential access applications have a tendency to maximize any caching advantages of the storage system, and take advantage of the higher density SAS disk drives. In these applications, the speed at which the drive can transfer data from the platter has the greatest effect on overall performance. Thus, medium-to-large block and sequential I/O applications can reap the greatest benefits from the drive’s higher area-bit densities.

55H49 – PowerVault MD1200 3TB SAS Hard Drive Specifications – 9ZM278-150, ST3000NM0023

SAS 6Gb/s
7200 RPM
Average Seek Time
Average Latency
Form Factor

Dell PowerVault MD1200 at a Glance – 055H49, 9ZM278-150

Dell PowerVault MD1200 is the second generation of Dell’s low-cost, high-capacity expansion enclosure that improves density, versatility and performance over previous generation to enhance support for mainstream and capacity-intensive applications.

The PowerVault MD1200 offers seamless expansion for Dell PowerEdge servers with the PERC H810 Host-RAID adapter. It also offers drive flexibility when adding capacity or data tiering to any of Dell’s primary storage arrays.

Versatility and Flexibility for Business Needs – 055H49, 9ZM278-150

The MD1200 is Dell’s most versatile direct-attached storage expansion enclosure. Featuring support for 2.5 inch drives, as well as the ability to mix 2.5-inch and 3.5-inch enclosures behind a single PERC H810 Host-RAID adapter,the PowerVault MD1200 delivers capacity and performance to support most customer deployments. The 55H49 is a 3TB 7.2k SAS HDD designed specifically to work with the MD1200 to allow for 36TB of raw storage space in a small 2U form factor.

Additional information

Weight 2.25 lbs
Dimensions 9 × 4.5 × 1 in


Form Factor

3.5 inch



Drive Type


Storage Capacity (GB)




1 review for 55H49 – Dell PowerVault MD1200 3TB 7.2K SAS 3.5″ – 9ZM278-150, ST3000NM0023

  1. Jim J.

    Great price, HDD worked without issue. I think I just found my new supplier for replacement drives!

Only logged in customers who have purchased this product may leave a review.

Shopping cart


No products in the cart.

Continue Shopping