IBM 43X0839 42C0259 ST973451SS 73GB 15K SAS 2.5" HDD Server Hard Drive Disk
Refurbished | Free Shipping | Allstate-Serviced Warranty | Money Back Guarantee
Fully Tested | SAS | 2.5-Inch | 73GB | 15K RPM | IBM P/N: 43X0839 / 42C0259 | Model: ST973451SS
Designed for supported IBM server and enterprise storage systems that accept 2.5" SAS hard drives.
Avoid compatibility mistakes and downtime. This exact IBM 73GB 15K 2.5" SAS hard drive is sold as Refurbished, professionally tested, and identified by the correct IBM part numbers 43X0839 / 42C0259 and drive model ST973451SS—so you can validate fitment before deployment and order with confidence.
Built for business and datacenter environments, this 73GB 15K SAS drive is a practical choice for server replacements, hot spares, maintenance inventory, and legacy enterprise deployments where matching interface, form factor, speed, and IBM part numbers matters.
Testing / Functional Status (Fully Tested)
This drive is fully tested and verified for proper operation prior to shipment. Our goal is simple: deliver a reliable enterprise hard drive that’s ready for installation and backed by the protections associated with the Refurbished program.
Typical validation includes:
Power-on / initialization verification
Health check and functional read/write verification
Interface detection and stability confirmation
Interface, Compatibility & Downtime Risk (Read This)
Interface: SAS (Serial Attached SCSI)
Form Factor: 2.5-inch enterprise drive
Drive Model: ST973451SS
Important: This is SAS, not SATA. A SATA-only backplane or controller will not accept a SAS drive.
For server installs, confirm controller/backplane compatibility, firmware expectations, and whether your chassis requires a specific tray, caddy, or carrier.
If you’re replacing an existing drive, matching the IBM part numbers 43X0839 / 42C0259 and model ST973451SS helps reduce ordering errors and minimizes downtime risk.
Specifications
Brand: IBM
Model: ST973451SS
Part Number: 43X0839 / 42C0259
Capacity: 73GB
Form Factor: 2.5"
Interface: SAS
Speed: 15,000 RPM
Drive Type: Enterprise Hard Disk Drive (HDD)
Use Case: Servers, hot spares, maintenance replacements, enterprise storage with systems that support 2.5" SAS hard drives, including many IBM server and storage configurations and other enterprise platforms using SAS controllers/backplanes. Please verify:
SAS controller/backplane support (SAS requirements for your exact system
Any firmware / RAID compatibility requirements for your environment
Matching IBM FRU / option / part number requirements for production installs
Why Buy Refurbished
This item is offered through the Refurbished program from a quality-vetted seller. states that Refurbished products include free shipping, 30-day free returns, and an Allstate-serviced warranty, with Money Back Guarantee also applying. That gives you two layers of protection: warranty coverage and transaction protection.
Warranty Note (Important)
If your listing is in the Certified Refurbished tier, states the included Allstate-serviced warranty is two years.
If it is listed under Excellent / Very Good / Good, states the included warranty is one year.
Use the warranty length that matches your specific refurb tier.
What’s Included
IBM 43X0839 / 42C0259 / ST973451SS 73GB 15K 2.5" SAS Hard Drive
Only the item shown in the photos is included unless otherwise stated. For server parts, please review photos to confirm whether any tray, caddy, or bracket is included.
Buy with confidence from an Refurbished seller offering free shipping, tested enterprise hardware, and verified IBM model/part-number identification—a dependable replacement option for supported IBM SAS server environments.
