The Dell 400-AAUZ (400-AAUZ - Dell 256GB SATA 6Gb/s mSATA Solid State Drive) is a Solid State Drives component engineered for sustained enterprise-class workloads. This part addresses common procurement scenarios where exact-match replacement, capacity expansion, or new-build deployment is required. Technical specifications include capacity of 256 GB, interface of SATA, data rate of 6 Gb/s. Common deployment scenarios include database transaction-log volumes, virtualization datastores, OS-boot tier, backup-repository targets, and warm-data tiers in tiered-storage architectures. Pro Disk Network maintains the 400-AAUZ 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 400-AAUZ is a Dell solid state drives component with capacity 256 GB, interface SATA, data rate 6 Gb/s. Pricing on the 400-AAUZ 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-AAUZ are shown on this page.
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The 400-AAUZ is a Dell solid state drives part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the 400-AAUZ ship?
400-AAUZ orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
The 400-AAUZ 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 Datastore — ESXi 7/8 datastores hosting 30–80 VMs per drive. RAID 10 for write-intensive, RAID 5 for read-leaning VM mixes.
Citrix / Horizon VDI — Linked-clone master images and write-cache disks. Lower DWPD acceptable since VDI write patterns are bursty.
NoSQL & Real-Time Analytics — MongoDB, Cassandra, ClickHouse, Druid hot-tier nodes. NVMe variant strongly preferred over SAS/SATA for query latency.
Hypervisor Boot — ESXi, Hyper-V, Proxmox boot drives. Read-intensive (1 DWPD) is sufficient. Mirror two drives for redundancy.
What is the 400-AAUZ?
The 400-AAUZ is a Dell enterprise solid-state drive with capacity 256 GB and interface SATA, 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-AAUZ
Pros
Direct-to-rack shipping on multi-pack orders
Sequential serial-number bundling for cluster builds
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 400-AAUZ
Is the 400-AAUZ a genuine Dell part?
Yes. Pro Disk Network sources every 400-AAUZ 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-AAUZ fit my system?
The 400-AAUZ is a Dell solid state drives part. Email sales@prodisknetwork.com with your system make, model, and serial number - we will confirm compatibility and ship same-day if in stock.
How fast does the 400-AAUZ ship?
400-AAUZ orders placed before 3 pm ET ship the same business day from US warehouses. Delivery is next business day to most metro ZIPs via FedEx/UPS overnight; ground delivery covers remaining US in 1-4 business days.
What is the warranty on the 400-AAUZ?
New 400-AAUZ 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-AAUZ?
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-AAAI — 400-AAAI - Dell 600GB 10000RPM SAS 6Gb/s Hot Pluggable 2.5-inch (In 3.5-inch Hybrid Carrier) Hard Drive with Tray for PowerEdge and Powervault Server — $246.00
400-AABX — 400-AABX - Dell 600GB 10000RPM SAS 6Gb/s 2.5-inch Hard Drive with Tray — $265.26
400-AABY — 400-AABY - Dell 900GB 10000RPM SAS Hot-Pluggable 2.5-inch Hard Drive with Tray — $242.75
400-AACP — 400-AACP - Dell 320GB 5400RPM SATA 3Gb/s 2.5-inch Hard Drive — $204.74
400-AACQ — 400-AACQ - Dell 500GB 5400RPM SATA 6Gb/s 2.5-inch Hard Drive — $200.55
400-AACU — 400-AACU - Dell 1TB 7200RPM SATA 6Gb/s 2.5-inch Hard Drive — $111.70
400-AACV — 400-AACV - Dell 2TB 7200RPM SATA 6Gb/s 3.5-inch Hard Drive — $352.45
400-AACW — 400-AACW - Dell 2TB 7200RPM SATA 6Gb/s Hard Drive — $629.49
400-AADZ — 400-AADZ - Dell 4TB 7200RPM SATA 3Gb/s 3.5-inch Hard Drive — $248.82
400-AAEH — 400-AAEH - Dell 4TB 7200RPM SAS 6Gb/s 3.5-inch Hard Drive — $407.45
400-AAEI — 400-AAEI - Dell 4TB 7200RPM SAS 6Gb/s 3.5-inch Hard Drive Gen. 13 with Tray — $458.46
400-AAEK — 400-AAEK - Dell 1TB 5400RPM SATA 6Gb/s 2.5-inch Hard Drive — $217.40