AC312800 - Western Digital 12GB 5400RPM ATA-66 3.5-inch Hard Drive
SKU: AC312800Brand: Western DigitalCategory: Storage Devices
$131.03In Stock — Ships Today
About the AC312800
The Western Digital AC312800 (AC312800 - Western Digital 12GB 5400RPM ATA-66 3.5-inch Hard Drive) is a Storage Devices component engineered for sustained enterprise-class workloads. Manufactured to OEM specifications and tested for compatibility with enterprise rack server and data-center deployments, this part addresses common procurement scenarios where exact-match replacement, capacity expansion, or new-build deployment is required. Technical specifications include capacity of 12 GB, spindle speed of 5,400 RPM, form factor of 3.5-inch. Common deployment scenarios include database transaction-log volumes, virtualization datastores, OS-boot tier, backup-repository targets, and warm-data tiers in tiered-storage architectures. Pro Disk Network sources the AC312800 through reputable distribution channels and applies a verification check against the OEM compatibility matrix before each unit is added to active inventory. Each unit ships from a US fulfillment hub (Hillsboro OR, Atlanta GA, or Phoenix AZ) with same-day dispatch on in-stock orders before 3pm ET. Net 30 / Net 60 terms available for qualified business, government, and education accounts. 30-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.
The AC312800 is a Western Digital storage devices component with capacity 12 GB, spindle speed 5,400 RPM, form factor 3.5-inch. Pro Disk Network sells the AC312800 for $131.03 with same-day US shipping and a 30-day free return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the AC312800 verified against the manufacturer datasheet and our internal lab benchmarks.
Quick Answer: Will the AC312800 work with my RAID controller?
The AC312800 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 AC312800 ship?
If in stock, the AC312800 ships same business day on US orders placed before 2 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.
The AC312800 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.
New, Bulk, or Refurbished — Choosing Your Tier
Pro Disk Network offers the AC312800 across three procurement tiers. Each tier is fully functional and warranted; the choice comes down to budget, warranty length, and whether the deployment is production-critical or capacity-expansion.
Tier
Discount vs OEM List
Warranty
Best For
New (Sealed OEM)
25–40%
Western Digital manufacturer warranty (1–5 yr)
Production-critical first-tier
New (Bulk OEM)
50–65%
3-year Pro Disk Network warranty
New cluster builds, secondary tier
Refurbished
75–85%
12-month advance replacement
Capacity expansion, lab, dev/test, EOL refresh
Bulk & Volume Pricing for AC312800
Ships from our US warehouse — same-day US dispatch on orders placed before 2pm ET. Net 30 terms available for verified businesses, government and education.
Volume discounts on the AC312800 are automatic at checkout. Net 30 terms available for verified businesses, government, and education. Email sales@prodisknetwork.com for orders above 100 units.
Quantity
Discount
Unit Price
1
0%
$131.03
5+
4%
$125.79
10+
8%
$120.55
25+
13%
$114.00
50+
18%
$107.44
100+
23%
$100.89
What is the AC312800?
The AC312800 is a Western Digital enterprise-grade hard drive with capacity 12 GB and spindle speed 5,400 RPM, manufactured by Western Digital. 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 AC312800
Pros
Bulk-quantity pricing for 6+ unit orders
Direct-to-rack shipping on multi-pack orders
Sequential serial-number bundling for cluster builds
Cons
Designed for capacity tier, not write-intensive cache
Not a drop-in for desktop NAS without verifying caddy
Some firmware revs locked to specific RAID-controller families
Frequently Asked Questions about AC312800
Is the AC312800 a genuine Western Digital part?
Yes. Pro Disk Network sources every AC312800 as factory-original Western Digital inventory verified against the manufacturer parts registry before listing. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Western Digital servers, surface-tested, and re-warranted by Pro Disk Network for 12 months.
Will the AC312800 work with my RAID controller?
The AC312800 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 AC312800 ship?
If in stock, the AC312800 ships same business day on US orders placed before 2 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 AC312800?
New AC312800 units carry the full Western Digital manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (12 months refurbished, 36 months new bulk). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the AC312800?
Yes. Pro Disk Network offers automatic volume discounts at 10, 25, 50, and 100+ unit tiers. Net 30 terms are available for verified businesses, government, and education buyers. Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
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 AC312800, 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 AC312800 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.