HP 500656-B21#0D1 2GB PC3-10600 DDR3-1333MHz ECC Registered CL9 RDIMM Dual-Rank Memory Module

HP 500656-B21#0D1 2GB PC3-10600 DDR3-1333MHz ECC Registered CL9 RDIMM Dual-Rank Memory Module

SKU: 500656-B21-0D1 Brand: HP Category: Server Memory
$93.36 In Stock — Usually Ships in 1–3 Business Days

About the 500656-B21-0D1

The HP 500656-B21-0D1 (HP 500656-B21#0D1 2GB PC3-10600 DDR3-1333MHz ECC Registered CL9 RDIMM Dual-Rank Memory Module) is a Server 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 2 GB, pc standard of PC3-10600, number of sticks of 1, frequency of 1333 MHz, memory class of ECC, Registered, features of Dual-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 maintains the 500656-B21-0D1 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. Dispatch in 1–3 business days; free standard ground shipping on US orders over $150.

Specifications

Part Identification

  • Part Number / MPN

    500656-B21-0D1

  • Manufacturer

    HP

  • Category

    Server Memory

Technical Specifications

  • Capacity

    2 GB

  • PC Standard

    PC3-10600

  • Number of Sticks

    1

  • Frequency

    1333 MHz

  • Memory Class

    ECC, Registered

  • Features

    Dual-Rank

Order & Fulfillment Details

  • Condition

    Refurbished

    Quality Tier
    Professionally tested — new available on request
  • Warranty

    90-Day Pro Disk Network Warranty

    Coverage
    Advance replacement — we ship first, you return the faulty unit
  • Shipping

    Free over $150 — usually ships in 1–3 business days

  • Returns

    30-Day Returns — US

    Return Window
    Original packaging required
Part Number / MPN500656-B21-0D1
ManufacturerHP
CategoryServer Memory
Capacity2 GB
PC StandardPC3-10600
Number of Sticks1
Frequency1333 MHz
Memory ClassECC, Registered
FeaturesDual-Rank
ConditionRefurbished — new available on request
Warranty90-Day Pro Disk Network Warranty — advance replacement
ShippingFree over $150 — usually ships in 1–3 business days
Returns30-Day Returns — US

Summary

The 500656-B21-0D1 is a HP server memory component with capacity 2 GB, pc standard PC3-10600, number of sticks 1. Pro Disk Network sells the 500656-B21-0D1 for $93.36 with US shipping in 1–3 business days and a 30-day return guarantee.

Trust Signals

  • 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 500656-B21-0D1 compatible with?

The 500656-B21-0D1 is a HP server 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 500656-B21-0D1 ship?

Pro Disk Network usually dispatches the 500656-B21-0D1 in 1–3 business days. 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.

Email engineering for a compatibility check ›

Common Use Cases for 500656-B21-0D1

The 500656-B21-0D1 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 500656-B21-0D1?

The 500656-B21-0D1 is a HP server memory module with capacity 2 GB and pc standard PC3-10600, 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 500656-B21-0D1

Pros

  • Lower cost than buying through the OEM channel
  • US shipping in 1–3 business days cuts deployment lead time

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 500656-B21-0D1

Is the 500656-B21-0D1 a genuine HP part?
Yes. Pro Disk Network sources every 500656-B21-0D1 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 500656-B21-0D1 compatible with?
The 500656-B21-0D1 is a HP server 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 500656-B21-0D1 ship?
Pro Disk Network usually dispatches the 500656-B21-0D1 in 1–3 business days. 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 500656-B21-0D1?
New 500656-B21-0D1 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 500656-B21-0D1?
Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.

Similar Products

From the Same Series as 500656-B21-0D1

Other parts that share the 500656 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.

  • 500656-10G — 500656-10G - HP 10GB Kit (5 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory — $120.49
  • 500656-14G — 500656-14G - HP 14GB Kit (7 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory — $503.24
  • 500656-16G — 500656-16G - HP 16GB Kit (8 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory — $700.25
  • 500656-18G — 500656-18G - HP 18GB Kit (9 X 2GB) DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory — $199.63
  • 500656-B21 — 500656-B21 - HP 2GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module — $93.36
  • 500656-B21N — 500656-B21N - HP 2GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module — $93.36
  • 500656-B22 — 500656-B22 - HP 2GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory Module — $93.36
  • 500656-B23 — 500656-B23 - HP 2GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory Module — $93.36
  • 500656-B24 — 500656-B24 - HP 2GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM Dual Rank Memory Module — $93.36
  • 500656-S21 — 500656-S21 - HP 2GB DDR3-1333MHz PC3-10600 ECC Registered CL9 240-Pin DIMM 1.35V Low Voltage Dual Rank Memory Module — $93.36
  • 500656-S21-RF — 500656-S21-RF - HP 2GB PC3-10600 DDR3-1333MHz ECC Registered CL9 RDIMM Dual-Rank Memory Module — $93.36
  • 50065621 — 50065621 - HP 2GB PC3-10600 DDR3-1333MHz ECC Registered CL9 RDIMM Dual-Rank Memory Module — $93.36

Pro Disk Network Buyer’s Guide: Server Memory

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 500656-B21-0D1 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.

Part of

Server Memory Hub

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RDIMM, LRDIMM, UDIMM, ECC, DDR4 + DDR5 modules for HP, Dell, Lenovo, Supermicro and Cisco servers.