This HP 266269-B21 delivers Desktop Memory functionality and is built for 24/7 enterprise duty cycles. Technical specifications include capacity of 512 MB, number of sticks of 2, frequency of 266 MHz, connector of 184-pin, voltage of 2.5V, memory class of ECC, Unbuffered. Workload fit covers virtual desktop infrastructure (Citrix, VMware Horizon), Java application servers (Tomcat, JBoss, WebLogic), enterprise data warehouse (Teradata, Vertica), and Hadoop/Spark cluster compute. Pro Disk Network sources the 266269-B21 through reputable distribution channels and applies a verification check against the OEM compatibility matrix before each unit is added to active inventory. Each unit ships from a US fulfillment hub (Hillsboro OR, Atlanta GA, or Phoenix AZ) with same-day dispatch on in-stock orders before 3pm ET. 90-day Pro Disk Network functional warranty included; free US ground shipping on orders over $150.
The 266269-B21 is a HP desktop memory component with capacity 512 MB, number of sticks 2, frequency 266 MHz. Pro Disk Network sells the 266269-B21 for $157.57 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 266269-B21 are shown on this page.
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Quick Answer: What servers is the 266269-B21 compatible with?
The 266269-B21 is a HP desktop memory module. Confirm DIMM rank, voltage, and speed against the target server's supported memory list before deployment - mixed configurations may downclock to the slowest installed module. For server-specific population diagrams, email sales@prodisknetwork.com with your server serial number.
How fast does the 266269-B21 ship?
Pro Disk Network dispatches the 266269-B21 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
The 266269-B21 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.
Hyper-V Cluster Node — Windows Server 2019/2022 Hyper-V hosts with Storage Spaces Direct. Dynamic memory allocation makes higher-density DIMMs cost-effective.
AI / ML Training — PyTorch and TensorFlow workloads benefit from large host memory pools for dataset preprocessing and CPU-side feature engineering.
Tanzu / Kubernetes Workers — Worker node memory expansion for high-density container deployments. Plan for 8–16 GB per moderate Pod baseline.
What is the 266269-B21?
The 266269-B21 is a HP server memory module with capacity 512 MB and number of sticks 2, manufactured by HP. 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 266269-B21
Pros
Lower cost than buying through the OEM channel
Same-day US shipping cuts deployment lead time
Cons
Server-grade DDR module — does not work in consumer desktops
Buffered (RDIMM) modules require server motherboards
Confirm voltage and channel rules before mixed-density installs
Frequently Asked Questions about 266269-B21
Is the 266269-B21 a genuine HP part?
Yes. Pro Disk Network sources every 266269-B21 as factory-original HP inventory. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned HP servers, surface-tested, and re-warranted by Pro Disk Network for 90 days.
What servers is the 266269-B21 compatible with?
The 266269-B21 is a HP desktop memory module. Confirm DIMM rank, voltage, and speed against the target server's supported memory list before deployment - mixed configurations may downclock to the slowest installed module. For server-specific population diagrams, email sales@prodisknetwork.com with your server serial number.
How fast does the 266269-B21 ship?
Pro Disk Network dispatches the 266269-B21 same-day on orders confirmed before 3 pm ET. Multi-pallet projects requiring crating ship within 2 business days. International shipping (Canada, Mexico, EU, APAC) takes 3-7 business days via DHL Express or FedEx International Priority.
What is the warranty on the 266269-B21?
New 266269-B21 units carry the full HP 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 266269-B21?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Compatibility: Rank, Density, and Channel Population Rules
Memory population order for Xeon Scalable is documented in the motherboard manual; the typical rule is to populate channels symmetrically across both CPU sockets and across all six channels per socket. For two-socket builds with eight DIMMs, populate the white slot first on each channel; for sixteen-DIMM builds, populate both slots on every channel. Asymmetric population leaves performance on the table.
Pricing Strategy: New, Bulk, or Refurbished
The 266269-B21 is available across three procurement tiers, and the choice is driven by criticality, warranty coverage, and budget. New (sealed OEM) units carry the full HP manufacturer warranty and command a 20-30% premium over bulk-OEM tier. New (bulk-OEM) units are factory-fresh modules sold without retail box. Refurbished units come from decommissioned servers, are individually MemTest-validated, and carry a 90-day advance-replacement warranty.