WUH721816ALE6L1 - Western Digital Ultrastar DC HC550 16TB 7200RPM SATA 6Gb/s SED 512MB Cache 3.5-inch Hard Drive

WUH721816ALE6L1 - Western Digital Ultrastar DC HC550 16TB 7200RPM SATA 6Gb/s SED 512MB Cache 3.5-inch Hard Drive

SKU: WUH721816ALE6L1 Brand: Western Digital Browse: Western Digital Enterprise Drives Category: Server Hard Drive
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About the WUH721816ALE6L1

This Western Digital WUH721816ALE6L1 delivers Server Hard Drive functionality and is built for 24/7 enterprise duty cycles. Technical specifications include spindle speed of 7,200 RPM, form factor of 3.5-inch, interface of SATA, data rate of 6 Gb/s, cache of 512MB. Workload fit covers Hyper-V cluster storage, Proxmox VE shared storage, Ceph OSDs, MinIO erasure-coded pools, and bulk file-server (SMB/NFS) duty. Pro Disk Network maintains the WUH721816ALE6L1 in our enterprise inventory and verifies each unit against manufacturer datasheet specifications prior to listing. New stock ships factory-sealed where available; refurbished units are tested under load before dispatch and ship with a 90-day Pro Disk Network functional warranty. Same-day dispatch on in-stock orders placed before 3pm ET; free standard ground shipping on US orders over $150.

Specifications

Part Identification

Technical Specifications

  • Spindle Speed

    7,200 RPM

  • Form Factor

    3.5-inch

  • Interface

    SATA

  • Data Rate

    6 Gb/s

  • Cache

    512MB

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 / MPNWUH721816ALE6L1
ManufacturerWestern Digital
CategoryServer Hard Drive
Spindle Speed7,200 RPM
Form Factor3.5-inch
InterfaceSATA
Data Rate6 Gb/s
Cache512MB
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 WUH721816ALE6L1 is a Western Digital server hard drive component with spindle speed 7,200 RPM, form factor 3.5-inch, interface SATA. Pricing on the WUH721816ALE6L1 is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.

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 WUH721816ALE6L1 work with my RAID controller?

The WUH721816ALE6L1 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 WUH721816ALE6L1 ship?

Pro Disk Network dispatches the WUH721816ALE6L1 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.

Email engineering for a compatibility check ›

Common Use Cases for WUH721816ALE6L1

The WUH721816ALE6L1 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.

  • 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.
  • Object Storage (Ceph / MinIO) — JBOD presentation behind Ceph OSDs or MinIO erasure-coded pools. Mix with NVMe metadata drives for production object stores.

What is the WUH721816ALE6L1?

The WUH721816ALE6L1 is a Western Digital enterprise-grade hard drive with spindle speed 7,200 RPM and form factor 3.5-inch, 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 WUH721816ALE6L1

Pros

  • Same-day US shipping from our US warehouse

Cons

  • Not enterprise NVMe — sub-100 µs latency workloads need a different SKU
  • Bulk capacity is the value play, not raw IOPS
  • Larger orders may ship via LTL freight (signature required)

Frequently Asked Questions about WUH721816ALE6L1

Is the WUH721816ALE6L1 a genuine Western Digital part?
Yes. Pro Disk Network sources every WUH721816ALE6L1 as factory-original Western Digital inventory. 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 90 days.
Will the WUH721816ALE6L1 work with my RAID controller?
The WUH721816ALE6L1 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 WUH721816ALE6L1 ship?
Pro Disk Network dispatches the WUH721816ALE6L1 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the WUH721816ALE6L1?
New WUH721816ALE6L1 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 (90 days refurbished). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the WUH721816ALE6L1?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.

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Pro Disk Network Buyer’s Guide: Server Hard Drive

How to Pick the Right Drive Capacity for Your Use Case

If the WUH721816ALE6L1 is going into a RAID array, choose RAID 6 over RAID 5 for any capacity tier built from drives larger than 4 TB. The probability of a second drive failing during rebuild from a 6+ TB rebuild window is high enough that single-parity is no longer responsible. For all-flash arrays, RAID 10 still wins on write-amplification-sensitive workloads (OLTP databases, VDI write-cache).

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

Once the WUH721816ALE6L1 is in production, the single most impactful operational practice is SMART monitoring tied to your existing alerting stack. SMART attributes 187 (reported uncorrectable errors), 197 (current pending sector count), and 198 (offline uncorrectable sector count) are the leading indicators of impending drive failure. Alert on non-zero values, not just on absolute thresholds; once these attributes leave zero, the drive has typically 30-90 days of useful life remaining.

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