This Apple 661-3815 delivers Desktop Hard Drive functionality and is built for 24/7 enterprise duty cycles. Technical specifications include capacity of 500 GB, spindle speed of 7,200 RPM, form factor of 3.5-inch, interface of SATA, data rate of 3 Gb/s. 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 661-3815 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 661-3815 is a Apple desktop hard drive component with capacity 500 GB, spindle speed 7,200 RPM, form factor 3.5-inch. Pro Disk Network sells the 661-3815 for $854.91 with same-day US shipping and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 661-3815 are shown on this page.
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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 661-3815 work with my RAID controller?
The 661-3815 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 661-3815 ship?
If in stock, the 661-3815 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 661-3815 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 661-3815?
The 661-3815 is a Apple enterprise-grade hard drive with capacity 500 GB and spindle speed 7,200 RPM, manufactured by Apple. 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 661-3815
Pros
Same-day US shipping from our US warehouse
Cons
Refurbished tier reseals — original retail box not included
Single-drive purchases ship in static-shield bags, not retail packaging
Lead time on 24+ drive orders may extend 2–4 business days
Frequently Asked Questions about 661-3815
Is the 661-3815 a genuine Apple part?
Yes. Pro Disk Network sources every 661-3815 as factory-original Apple inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Apple servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the 661-3815 work with my RAID controller?
The 661-3815 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 661-3815 ship?
If in stock, the 661-3815 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 661-3815?
New 661-3815 units carry the full Apple 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 661-3815?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 661 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
661-3800 — 661-3800 - Apple 109-Keys USB White Pro Keyboard — $220.91
661-3811 — 661-3811 - Apple Camera Board for iMac G5 17 iSight — $330.07
661-3816 — 661-3816 - Apple 500GB 7200RPM PATA 3.5-Inch Hard Drive for Xserve RAID A1004 — $944.47
661-3835 — 661-3835 - Apple 256MB nVidia GeForce 7800 GT PCI-Express Video Graphics Card — $382.59
661-3841 — 661-3841 - Apple Inverter Assembly — $242.41
661-3848 — 661-3848 - Apple 160GB 7200RPM SATA 1.5Gb/s 3.5-inch Hard Drive for iMac A1173 — $690.28
661-3849 — 661-3849 - Apple 250GB 7200RPM SATA 1.5Gb/s 3.5-inch Hard Drive for iMac A1173 — $823.14
661-3850 — 661-3850 - Apple 500GB 7200RPM SATA 1.5Gb/s 3.5-inch Hard Drive for iMac A1173 — $165.79
661-3852 — 661-3852 - Apple 8x Slot Load Super Drive for iMac 17 — $616.38
661-3853 — 661-3853 - Apple 80GB 5400RPM SATA 1.5Gb/s 2.5-inch Hard Drive — $471.43
661-3854 — 661-3854 - Apple 100GB 5400RPM SATA 1.5Gb/s 2.5-inch Hard Drive — $491.64
661-3855 — 661-3855 - Apple 120GB 5400RPM SATA 2.5-inch Hard Drive for MacBook Pro A1181 — $520.21
Pro Disk Network Buyer’s Guide: Desktop 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 661-3815, 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 661-3815 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.