Sourced for enterprise IT teams, the Dell 400-ARKP (400-ARKP - Dell 900GB SAS 12Gb/s 15000RPM 2.5-inch Hard Drive with Hybrid Tray for 14G PowerEdge Server) is a Server Hard Drive component appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include capacity of 900 GB, spindle speed of 15,000 RPM, form factor of 2.5-inch, interface of SAS, data rate of 12 Gb/s. 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 400-ARKP 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 400-ARKP is a Dell server hard drive component with capacity 900 GB, spindle speed 15,000 RPM, form factor 2.5-inch. Pricing on the 400-ARKP 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 400-ARKP are shown on this page.
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Quick Answer: Will the 400-ARKP work with my RAID controller?
The 400-ARKP 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 400-ARKP ship?
If in stock, the 400-ARKP 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 400-ARKP 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 400-ARKP?
The 400-ARKP is a Dell enterprise-grade hard drive with capacity 900 GB and spindle speed 15,000 RPM, manufactured by Dell. 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 400-ARKP
Pros
Free 30-day return window covers DOA + fit issues
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 400-ARKP
Is the 400-ARKP a genuine Dell part?
Yes. Pro Disk Network sources every 400-ARKP as factory-original Dell inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Dell servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the 400-ARKP work with my RAID controller?
The 400-ARKP 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 400-ARKP ship?
If in stock, the 400-ARKP 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 400-ARKP?
New 400-ARKP units carry the full Dell 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 400-ARKP?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 400 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
400-ARBN — 400-ARBN - Dell 2TB 7200RPM SAS 12Gb/s Hot-Pluggable 2.5-inch Hard Drive — $492.09
400-ARBO — 400-ARBO - Dell 2TB 7200RPM Near Line SAS 12Gb/s Hot-Pluggable 2.5-inch Hard Drive — $612.05
400-ARBP — 400-ARBP - Dell 2TB 7200RPM Near Line SAS 12Gb/s Hot-Pluggable 2.5-inch Hard Drive — $438.95
400-ARHP — 400-ARHP - Dell 400GB Multi-Level Cell SAS 12Gb/s Write Intensive Hot-Swappable 2.5-inch Solid State Drive — $1,040.10
400-ARHU — 400-ARHU - Dell 400GB Multi-Level Cell (MLC) SAS 12Gb/s Hot-Swappable Write Intensive 2.5-inch Solid State Drive — $523.43
400-ARJJ — Dell 400-ARJJ 1.92TB Triple-Level Cell SAS 12Gb/s Hot-Pluggable Read intensive 2.5-Inch Solid State Drive With Tray For PowerEdge Servers — $1,241.60
400-ARJL — 400-ARJL - Dell 7.68TB SAS 12Gb/s Read Intensive Hot-Pluggable 2.5-inch Solid State Drive — $3,856.00
400-ARJN — Dell 400-ARJN 15.36TB Triple-Level Cell SAS 12Gb/s Hot-Pluggable Read Intensive (512e) 2.5-Inch Solid State Drive with Tray for Poweredge C6420/R640 — $5,433.60
400-ARKE — 400-ARKE - Dell 10TB 7200RPM SAS 12Gb/s 512E Hot-Pluggable 3.5-inch Hard Drive with Tray for 14G PowerEdge Server — $310.40
400-ARKG — 400-ARKG - Dell 10TB 7200RPM SAS 12Gb/s 512E Hot-Pluggable 3.5-inch Hard Drive with Tray for PowerEdge Server — $552.00
400-ARKZ — 400-ARKZ - Dell 900GB 15000RPM SAS 12Gb/s 4KN 2.5-inch Hard Drive — $455.82
400-ARME — 400-ARME - Dell 6TB 7200RPM SAS 12Gb/s 3.5-inch Hard Drive — $102.40
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 400-ARKP, 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 400-ARKP 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.