Western Digital part number WD4500BLHX-20PK identifies the Western Digital WD4500BLHX/20PK VelociRaptor 450GB 10000RPM SATA 6Gb/s 32MB Cache 2.5-inch Hard Drive, an enterprise-grade External Hard Drive unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include spindle speed of 10,000 RPM, form factor of 2.5-inch, interface of SATA, data rate of 6 Gb/s, cache of 32MB. 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 sources the WD4500BLHX-20PK 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. 90-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.
The WD4500BLHX-20PK is a Western Digital external hard drive component with spindle speed 10,000 RPM, form factor 2.5-inch, interface SATA. Pricing on the WD4500BLHX-20PK is quote-based — email sales@prodisknetwork.com or use our live chat for a quote within one business day.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the WD4500BLHX-20PK are shown on this page.
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Quick Answer: Will the WD4500BLHX-20PK work with my RAID controller?
The WD4500BLHX-20PK 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 WD4500BLHX-20PK ship?
Pro Disk Network dispatches the WD4500BLHX-20PK 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.
The WD4500BLHX-20PK 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 WD4500BLHX-20PK?
The WD4500BLHX-20PK is a Western Digital enterprise-grade hard drive with spindle speed 10,000 RPM and form factor 2.5-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 WD4500BLHX-20PK
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 WD4500BLHX-20PK
Is the WD4500BLHX-20PK a genuine Western Digital part?
Yes. Pro Disk Network sources every WD4500BLHX-20PK 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 WD4500BLHX-20PK work with my RAID controller?
The WD4500BLHX-20PK 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 WD4500BLHX-20PK ship?
Pro Disk Network dispatches the WD4500BLHX-20PK 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 WD4500BLHX-20PK?
New WD4500BLHX-20PK 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 WD4500BLHX-20PK?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the WD4500BLHX series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
WD4500BLHX — WD4500BLHX - Western Digital VelociRaptor 450GB 10000RPM SATA 6Gb/s 32MB Cache 2.5-inch Hard Drive — $246.45
WD4500BLHX-01V7BV0 — WD4500BLHX-01V7BV0 - Western Digital VelociRaptor 450GB 10000RPM SATA 6Gb/s 32MB Cache 2.5-inch Hard Drive — $223.96
Pro Disk Network Buyer’s Guide: External Hard Drive
How to Pick the Right Drive Capacity for Your Use Case
If the WD4500BLHX-20PK 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 WD4500BLHX-20PK 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.