Fujitsu part number CA06681-B16400SU identifies the CA06681-B16400SU - Fujitsu 36GB 10000RPM SAS 3Gb/s 2.5-inch Hard Drive, an enterprise-grade Server Hard Drive unit appropriate for data-center, server-room, and workstation deployment. Technical specifications include capacity of 36 GB, spindle speed of 10,000 RPM, form factor of 2.5-inch, interface of SAS, data rate of 3 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 CA06681-B16400SU 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 CA06681-B16400SU is a Fujitsu server hard drive component with capacity 36 GB, spindle speed 10,000 RPM, form factor 2.5-inch. Pro Disk Network sells the CA06681-B16400SU for $84.50 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 CA06681-B16400SU are shown on this page.
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Quick Answer: Will the CA06681-B16400SU work with my RAID controller?
The CA06681-B16400SU 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 CA06681-B16400SU ship?
If in stock, the CA06681-B16400SU 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 CA06681-B16400SU 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 CA06681-B16400SU?
The CA06681-B16400SU is a Fujitsu enterprise-grade hard drive with capacity 36 GB and spindle speed 10,000 RPM, manufactured by Fujitsu. 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 CA06681-B16400SU
Pros
Direct-to-rack shipping on multi-pack orders
Sequential serial-number bundling for cluster builds
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 CA06681-B16400SU
Is the CA06681-B16400SU a genuine Fujitsu part?
Yes. Pro Disk Network sources every CA06681-B16400SU as factory-original Fujitsu inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Fujitsu servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
Will the CA06681-B16400SU work with my RAID controller?
The CA06681-B16400SU 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 CA06681-B16400SU ship?
If in stock, the CA06681-B16400SU 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 CA06681-B16400SU?
New CA06681-B16400SU units carry the full Fujitsu 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 CA06681-B16400SU?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the CA06681 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
CA06681-B1600GE — CA06681-B1600GE - Fujitsu Enterprise 36.7GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $175.45
CA06681-B16100GE — CA06681-B16100GE - Fujitsu Enterprise 36.7GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $451.93
CA06681-B16500CP — CA06681-B16500CP - Fujitsu Enterprise 36.7GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $304.51
CA06681-B17700SE — CA06681-B17700SE - Fujitsu Enterprise 36.7GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $175.45
CA06681-B19900BA — CA06681-B19900BA - Fujitsu Enterprise 36.7GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $168.20
CA06681-B22400DL — CA06681-B22400DL - Fujitsu Mobile 80GB 5400RPM SATA 1.5GB/s 8MB Cache 2.5-inch Hard Drive — $249.39
CA06681-B26100GE — CA06681-B26100GE - Fujitsu Enterprise 73.5GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $244.39
CA06681-B26300D — CA06681-B26300D - Fujitsu Enterprise 73.5GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $136.18
CA06681-B26300DL — CA06681-B26300DL - Fujitsu Enterprise 73.5GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $128.95
CA06681-B26400SU — CA06681-B26400SU - Fujitsu Enterprise 73.5GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $429.83
CA06681-B26500CP — CA06681-B26500CP - Fujitsu Enterprise 73.5GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $226.17
CA06681-B27900WL — CA06681-B27900WL - Fujitsu Enterprise 73.5GB 10000RPM SAS 3GB/s 8MB Cache 2.5-inch Hard Drive — $183.96
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 CA06681-B16400SU, 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 CA06681-B16400SU 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.