EMC part number NB-VS15-300U identifies the NB-VS15-300U - EMC 300GB 15000RPM SAS 6GB/s 3.5-inch Hard Drive (SAS to Fiber Channel Interposer) for VNX 5100 / 5300 Series Storage System, an enterprise-grade Server Hard Drive unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include capacity of 300 GB, spindle speed of 15,000 RPM, form factor of 3.5-inch, interface of SAS, data rate of 6 Gb/s. 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 maintains the NB-VS15-300U 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.
The NB-VS15-300U is a EMC server hard drive component with capacity 300 GB, spindle speed 15,000 RPM, form factor 3.5-inch. Pro Disk Network sells the NB-VS15-300U for $515.83 with same-day US shipping and a 30-day return guarantee.
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Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the NB-VS15-300U are shown on this page.
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Quick Answer: Will the NB-VS15-300U work with my RAID controller?
The NB-VS15-300U 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 NB-VS15-300U ship?
If in stock, the NB-VS15-300U 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 NB-VS15-300U 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 NB-VS15-300U?
The NB-VS15-300U is a EMC enterprise-grade hard drive with capacity 300 GB and spindle speed 15,000 RPM, manufactured by EMC. 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 NB-VS15-300U
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 NB-VS15-300U
Is the NB-VS15-300U a genuine EMC part?
Yes. Pro Disk Network sources every NB-VS15-300U as factory-original EMC inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned EMC servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the NB-VS15-300U work with my RAID controller?
The NB-VS15-300U 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 NB-VS15-300U ship?
If in stock, the NB-VS15-300U 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 NB-VS15-300U?
New NB-VS15-300U units carry the full EMC 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 NB-VS15-300U?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the NB series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
NB-VS10-300 — NB-VS10-300 - EMC 300GB 10000RPM SAS 6GB/s 3.5-inch Hard Drive (SAS to Fiber Channel Interposer) for VNX 5500 / 5700 / 7500 Series Storage System — $636.84
NB-VS10-300U — NB-VS10-300U - EMC 300GB 10000RPM SAS 6GB/s 3.5-inch Hard Drive (SAS to Fiber Channel Interposer) for VNX 5500 / 5700 / 7500 Series Storage System — $622.54
NB-VS10-600 — NB-VS10-600 - EMC 600GB 10000RPM SAS 6GB/s 3.5-inch Hard Drive (SAS to Fiber Channel Interposer) for VNX 5200 / 5400 / 5600 Series Storage System — $949.57
NB-VS10-600U — NB-VS10-600U - EMC 600GB 10000RPM SAS 6GB/s 3.5-inch Hard Drive (SAS to Fiber Channel Interposer) for VNX 5200 / 5400 / 5600 Series Storage System — $915.24
NB-VS10-900 — NB-VS10-900 - EMC 900GB 10000RPM SAS 6Gb/s 3.5-inch Hard Drive — $330.75
NB-VS15-300 — NB-VS15-300 - EMC 300GB 15000RPM SAS 6GB/s 3.5-inch Hard Drive (SAS to Fiber Channel Interposer) for VNX 5100 / 5300 Series Storage System — $117.20
NB-VS15-600 — NB-VS15-600 - EMC 600GB 15000RPM SAS 6GB/s 3.5-inch Hard Drive (SAS to Fiber Channel Interposer) for VNXe3000 Series Storage System — $145.26
NB-VS15-600U — NB-VS15-600U - EMC 600GB 15000RPM SAS 6GB/s 3.5-inch Hard Drive (SAS to Fiber Channel Interposer) for VNXe3000 Series Storage System — $450.00
Pro Disk Network Buyer’s Guide: Server 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 NB-VS15-300U, 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 NB-VS15-300U 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.