$160.09In Stock — Usually Ships in 1–3 Business Days
About the 3TK85TA
The HP 3TK85TA (3TK85TA - HP 4GB PC4-21300 DDR4-2666MHz non-ECC Unbuffered CL19 UDIMM 1.2V Single-Rank Memory Module) is a Desktop Memory 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 4 GB, pc standard of PC4-21300, number of sticks of 1, frequency of 2666 MHz, voltage of 1.2V, memory class of ECC, Unbuffered, features of Single-Rank. Common deployment scenarios include database server upgrades (in-memory caches, SQL buffer pools), VMware ESXi / Hyper-V virtualization host memory expansion, GPU compute scratch pools, and HPC node provisioning. Pro Disk Network supplies the 3TK85TA to US business buyers. Stocked units ship in 1–3 business days. Pro Disk Network applies a 90-day functional warranty. Free US ground shipping on orders over $150.
The 3TK85TA is a HP desktop memory component with capacity 4 GB, pc standard PC4-21300, number of sticks 1. Pro Disk Network sells the 3TK85TA for $160.09 with US shipping in 1–3 business days and a 30-day return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 3TK85TA are shown on this page.
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US-based LLC — 7345 W Sand Lake Rd, STE 210, Office 3208, Orlando, FL 32819
US Shipping in 1–3 Business Days — in-stock orders ship via UPS
30-Day Returns — pre-paid label on DOA and defective items
Quick Answer: What servers is the 3TK85TA compatible with?
The 3TK85TA 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 3TK85TA ship?
3TK85TA orders ship in 1–3 business days 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 3TK85TA 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.
In-Memory Database — SAP HANA, Redis Enterprise, Apache Ignite, Aerospike — workloads that scale linearly with DRAM capacity.
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 3TK85TA?
The 3TK85TA is a HP server memory module with capacity 4 GB and pc standard PC4-21300, manufactured by HP. Pro Disk Network ships this part new and certified-refurbished from our US warehouse with dispatch in 1–3 business days, backed by a 30-day return guarantee.
Pros & Cons of 3TK85TA
Pros
RDIMM / LRDIMM clearly labelled for population-rule clarity
Cons
Not for laptop SO-DIMM upgrades — server DIMM only
LRDIMM and RDIMM are not interchangeable
Original retail box not always included on refurbished tier
Frequently Asked Questions about 3TK85TA
Is the 3TK85TA a genuine HP part?
Yes. Pro Disk Network sources every 3TK85TA 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 3TK85TA compatible with?
The 3TK85TA 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 3TK85TA ship?
3TK85TA orders ship in 1–3 business days 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 3TK85TA?
New 3TK85TA 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 3TK85TA?
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
Quad-rank modules behave differently from dual-rank: most modern Xeon platforms support 1-2 DPC (DIMMs per channel) at full speed with single- and dual-rank modules but downclock with quad-rank above 1 DPC. RDIMM and LRDIMM are not interchangeable in the same channel. ECC and non-ECC cannot be mixed. Server motherboards expect server DIMMs — the 3TK85TA is a server module and will not work in consumer desktop boards.
Pricing Strategy: New, Bulk, or Refurbished
If you are buying 16 or more modules at once, request a matched-lot quote: sequential manufacturing dates and serial numbers, which reduces variance in observed memory speeds across the channel. Pro Disk Network ships matched-lot orders for free on volumes of 16+.