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ST4000NM0023 | Seagate | 4TB | SAS 6Gb/s | 7.2K RPM | 3.5" | SAS Hard Drive

  • Enterprise Grade
  • Fully Tested
  • High-Capacity Storage
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“We needed 40 drives for a storage refresh. QTUSA had them in stock, shipped the same day, and every unit tested perfectly.”

— David R., IT Manager Verified Purchase

“We were looking for reliable drives at a competitive price, and QTUSA delivered. The order arrived quickly, was well packaged, and every drive performed exactly as expected.”

— Michael T., Systems Administrator Verified Purchase
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Frequently Asked Questions

Answers to common questions about compatibility, condition, shipping, and returns.

Is the ST4000NM0023 compatible with my system?

This part is from Seagate. The surest check is to match part number ST4000NM0023 with the part already in your system or your system's parts list. If you're unsure, contact us with your system model and we'll confirm before you order.

What condition is this item in?

This unit is a pull: it was removed from a working enterprise system. It is inspected and graded before listing.

Can this SAS drive be used in a regular desktop PC?

Not directly. SAS drives need a SAS controller or HBA. Most desktop motherboards only have SATA ports, so a SAS drive will not connect to them.

What is the difference between SAS and SATA drives?

SAS drives are built for servers, with dual ports and stronger error handling. A SAS controller can run SATA drives, but a SATA controller cannot run SAS drives.

Does this drive include a tray or caddy?

Only if the listing says so. Otherwise the drive ships bare. You can reuse the tray from your old drive, or find one in our HDD Caddies & Trays collection.

How is this item packed and shipped?

In-stock orders are packed for safe transit and dispatched within 1 to 3 business days. Tracking is emailed once the order ships. US orders of $25 or more ship free.

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  • Verified Condition

    Every item is inspected, graded, and described accurately before listing.

  • Returns Accepted

    If the product does not match the listing, we'll help make it right.

  • Fast Dispatch

    In-stock orders are prepared and dispatched within 1 to 3 business days.

  • Secure Checkout

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FROM VERIFIED BUYERS

Real buyers. Right parts. Every time.

Reviews imported from 11,000+ completed eBay transactions. 99.5% positive feedback record

  • Testimonial 01

    Needed a replacement SAS controller for a production server. Listing matched the exact revision, packaging was solid, and the card initialized without issues. Great experience.

    Man wearing glasses and a beanie smiling outdoors

    j*2**

  • Testimonial 02

    Ordered several DDR4 ECC RDIMMs for a client upgrade. All modules passed diagnostics and matched the listed specifications perfectly. Will definitely purchase again.

    A man wearing a tan wide-brim hat, a black hoodie, and a dark patterned shirt smoking a joint in an outdoor urban setting.

    d*4**

  • Testimonial 03

    Excellent seller. The Intel Xeon processor was clean, well-packaged, and worked immediately after installation. Accurate condition grading and quick delivery.

    Man with curly hair and beard laughing in front of a brick wall

    r*8**

  • Testimonial 04

    We've placed multiple orders for networking adapters and storage drives over the past year. Every item has arrived exactly as listed, making them a reliable supplier for our business.

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    m*7**

  • Testimonial 05

    Bought a used enterprise SSD for a lab build. Health stats looked strong, transfer speeds were as expected, and shipping was faster than estimated. Would buy again.

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    k*1**