Sourced for enterprise IT teams, the Western Digital WD30EZRX-20PK (WD30EZRX-20PK - Western Digital Caviar Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive) is a External Hard Drive component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include spindle speed of 5,400 RPM, form factor of 3.5-inch, interface of SATA, data rate of 6 Gb/s, cache of 64MB. Appropriate for OS boot tier (Windows Server, RHEL, Ubuntu Server, ESXi), application data tier, database log volumes, and tier-2 capacity in mixed-storage clusters. Pro Disk Network supplies the WD30EZRX-20PK 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.
The WD30EZRX-20PK is a Western Digital external hard drive component with spindle speed 5,400 RPM, form factor 3.5-inch, interface SATA. Pricing on the WD30EZRX-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 WD30EZRX-20PK are shown on this page.
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Quick Answer: Will the WD30EZRX-20PK work with my RAID controller?
The WD30EZRX-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 WD30EZRX-20PK ship?
If in stock, the WD30EZRX-20PK 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.
The WD30EZRX-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.
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 WD30EZRX-20PK?
The WD30EZRX-20PK is a Western Digital enterprise-grade hard drive with spindle speed 5,400 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 WD30EZRX-20PK
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 WD30EZRX-20PK
Is the WD30EZRX-20PK a genuine Western Digital part?
Yes. Pro Disk Network sources every WD30EZRX-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 WD30EZRX-20PK work with my RAID controller?
The WD30EZRX-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 WD30EZRX-20PK ship?
If in stock, the WD30EZRX-20PK 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 WD30EZRX-20PK?
New WD30EZRX-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 WD30EZRX-20PK?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the WD30EZRX series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
WD30EZRX — WD30EZRX - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $208.00
WD30EZRX-00AZ6B0 — WD30EZRX-00AZ6B0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $238.33
WD30EZRX-00D0B0 — WD30EZRX-00D0B0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $354.27
WD30EZRX-00D8PB0 — WD30EZRX-00D8PB0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $263.03
WD30EZRX-00DC0B0 — WD30EZRX-00DC0B0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $281.44
WD30EZRX-00DCOBO — WD30EZRX-00DCOBO - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $250.63
WD30EZRX-00J99B0 — WD30EZRX-00J99B0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $294.75
WD30EZRX-00MMB0 — WD30EZRX-00MMB0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $345.98
WD30EZRX-00MMM80 — WD30EZRX-00MMM80 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $150.97
WD30EZRX-00MMMB0 — WD30EZRX-00MMMB0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $282.28
WD30EZRX-00SPEB0 — WD30EZRX-00SPEB0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $240.85
WD30EZRX-11SPEB0 — WD30EZRX-11SPEB0 - Western Digital Green 3TB 5400RPM SATA 6Gb/s 64MB Cache 3.5-inch Hard Drive — $152.36
Pro Disk Network Buyer’s Guide: External Hard Drive
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 WD30EZRX-20PK, 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 WD30EZRX-20PK 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.