0900MX - Dell 20.4GB 5400RPM AT66 512KB Cache 3.5-inch Hard Drive

0900MX - Dell 20.4GB 5400RPM AT66 512KB Cache 3.5-inch Hard Drive

SKU: 0900MX Brand: Dell Browse: Enterprise Hard Drives Category: Desktop Hard Drive
$92.92 In Stock — Ships Today

About the 0900MX

Dell part number 0900MX identifies the 0900MX - Dell 20.4GB 5400RPM AT66 512KB Cache 3.5-inch Hard Drive, an enterprise-grade Desktop Hard Drive unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include spindle speed of 5,400 RPM, form factor of 3.5-inch, cache of 512KB. Typical workloads include VMware ESXi datastores, Veeam / Rubrik / Cohesity backup repositories, RDBMS data files (SQL Server, PostgreSQL, Oracle), and log-tier storage for Splunk and Elastic. Pro Disk Network supplies the 0900MX to US business buyers. Stocked units ship same-day on in-stock orders placed before 3pm ET. Pro Disk Network applies a 90-day functional warranty. Free US ground shipping on orders over $150; same-day expedited (UPS Next Day Air, FedEx Priority) available at checkout.

Specifications

Part Identification

Technical Specifications

  • Spindle Speed

    5,400 RPM

  • Form Factor

    3.5-inch

  • Cache

    512KB

Order & Fulfillment Details

  • Condition

    Refurbished

    Quality Tier
    Professionally tested — new available on request
  • Warranty

    90-Day Pro Disk Network Warranty

    Coverage
    Advance replacement — we ship first, you return the faulty unit
  • Shipping

    Free over $150 — Same-Day Dispatch

    Cutoff
    Orders placed before 3pm ET
  • Returns

    30-Day Returns — US

    Return Window
    Original packaging required
Part Number / MPN0900MX
ManufacturerDell
CategoryDesktop Hard Drive
Spindle Speed5,400 RPM
Form Factor3.5-inch
Cache512KB
ConditionRefurbished — new available on request
Warranty90-Day Pro Disk Network Warranty — advance replacement
ShippingFree over $150 — Same-Day Dispatch
Returns30-Day Returns — US

Summary

The 0900MX is a Dell desktop hard drive component with spindle speed 5,400 RPM, form factor 3.5-inch, cache 512KB. Pro Disk Network sells the 0900MX for $92.92 with same-day US shipping and a 30-day return guarantee.

Trust Signals

  • US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
  • Same-Day US Shipping — orders before 3pm ET ship today via UPS
  • 30-Day Returns — pre-paid label on DOA and defective items

Quick Answer: Will the 0900MX work with my RAID controller?

The 0900MX operates with any standard SAS/SATA/NVMe-compatible RAID controller (Dell PERC, HPE Smart Array, LSI/Broadcom MegaRAID, Adaptec, IBM ServeRAID, Lenovo ThinkSystem RAID). Mixing this drive in the same RAID volume with drives of different speed/capacity is supported but never recommended.

How fast does the 0900MX ship?

If in stock, the 0900MX ships same business day on US orders placed before 3 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.

Email engineering for a compatibility check ›

Common Use Cases for 0900MX

The 0900MX is deployed by US enterprises, MSPs, government, and education customers across multiple infrastructure scenarios. Below are the most common deployment patterns Pro Disk Network sees in real-world orders.

  • VMware vSAN Capacity Tier — Used as bulk storage in all-flash and hybrid vSAN clusters. Pair with NVMe cache-tier drives for SLA-grade write throughput at half the cost of all-NVMe.
  • Veeam Backup Repository — Cost-optimised backup target for Veeam B&R, Rubrik, or Cohesity primary backup tier. RAID 6 over 8–24 drives delivers 100+ TB usable per server.
  • Splunk Warm/Cold Tier — Appropriate for Splunk warm/cold/frozen indexes where ingest write rates are below 200 MB/s per node. Avoid for hot-tier indexes — use NVMe instead.
  • File Server / SMB Shares — General-purpose Windows Server / Samba shares for departmental file storage. RAID 5 for capacity, RAID 10 for IOPS-sensitive workloads.

What is the 0900MX?

The 0900MX is a Dell enterprise-grade hard drive with spindle speed 5,400 RPM and form factor 3.5-inch, manufactured by Dell. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with same-day dispatch on orders placed before 3 PM ET, backed by a 30-day return guarantee.

Pros & Cons of 0900MX

Pros

  • Same-day US shipping from our US warehouse

Cons

  • Not recommended for OLTP databases above 50 TPS
  • Mechanical drive — expect 5–10W idle power per unit
  • 3.5" form factor only — confirm caddy fit before ordering

Frequently Asked Questions about 0900MX

Is the 0900MX a genuine Dell part?
Yes. Pro Disk Network sources every 0900MX as factory-original Dell inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Dell servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the 0900MX work with my RAID controller?
The 0900MX operates with any standard SAS/SATA/NVMe-compatible RAID controller (Dell PERC, HPE Smart Array, LSI/Broadcom MegaRAID, Adaptec, IBM ServeRAID, Lenovo ThinkSystem RAID). Mixing this drive in the same RAID volume with drives of different speed/capacity is supported but never recommended.
How fast does the 0900MX ship?
If in stock, the 0900MX ships same business day on US orders placed before 3 pm ET. Most US ZIP codes receive next-business-day or 2-day delivery via FedEx/UPS Ground or Express. Bulk and project orders shipping in pallets are typically dispatched within 24-48 hours.
What is the warranty on the 0900MX?
New 0900MX units carry the full Dell manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 0900MX?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.

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How to Pick the Right Drive Capacity for Your Use Case

Sizing a storage drive correctly is the difference between a system that runs predictably for five years and one that you replace under emergency conditions at 18 months. For the 0900MX, plan capacity around three numbers: working-set size, retention window, and overhead headroom. Working set is the actively-read data — databases, indexes, hot files. Retention window is how long you keep cold data online before tiering off. Overhead headroom should be 25-30%: drives run noticeably slower above 80% utilisation and metadata operations stall above 90%.

Drive Health Monitoring: SMART, Workload Rating, and Predictive Failure

Workload rating — expressed as TB written per year — matters more than raw capacity in choosing the 0900MX for sustained-write workloads. Consumer SATA drives are rated for 55 TB/year; enterprise SATA for 180-550 TB/year; enterprise SAS for 550 TB+/year; mixed-use NVMe for 1-3 PB/year over five years. Match the rating to your sustained write profile, then add 30% headroom.

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