Sourced for enterprise IT teams managing enterprise rack server and data-center deployments, the Apple 661-5587 (661-5587 - Apple 2GB DDR3-1066MHz PC3-8500 non-ECC Unbuffered CL7 204-Pin SoDIMM Dual Rank Memory Module) is a Memory component matched to OEM specifications. Each unit is verified against manufacturer datasheet revisions and is appropriate for new-build, expansion, or warranty-replacement procurement. Technical specifications include capacity of 2 GB, pc standard of PC3-8500, connector of 204-pin, memory class of ECC, Unbuffered, SoDIMM, features of Dual-Rank. Appropriate for virtualization hosts, application servers, in-memory analytics, render farms, CAD/EDA workstations, and any workload constrained by RAM rather than CPU. Pro Disk Network maintains the 661-5587 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 30-day Pro Disk Network functional warranty. Net 30 terms are available for qualified business accounts. Same-day dispatch on in-stock orders placed before 3pm ET; free standard ground shipping on US orders over $150.
The 661-5587 is a Apple memory component with capacity 2 GB, pc standard PC3-8500, connector 204-pin. Pro Disk Network sells the 661-5587 for $72.84 with same-day US shipping and a 30-day free return guarantee.
Reviewed By
Reviewed by:Pro Disk Network Engineering Team — . Specifications, compatibility, and pricing for the 661-5587 verified against the manufacturer datasheet and our internal lab benchmarks.
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Same-Day US Shipping — orders before 3pm ET ship today via FedEx/UPS
30-Day Free Returns — pre-paid label included on all US orders
Net 30 Available — for verified business buyers
2,000+ B2B Customers — MSPs, government, education, enterprise IT
Quick Answer: What servers is the 661-5587 compatible with?
The 661-5587 is a Apple 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 661-5587 ship?
If in stock, the 661-5587 ships same business day on US orders placed before 2 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 661-5587 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 Cluster Memory — Per-host memory expansion for vSphere ESXi hosts. Match DIMM rank and speed across all sockets to keep memory channels balanced.
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.
New, Bulk, or Refurbished — Choosing Your Tier
Pro Disk Network offers the 661-5587 across three procurement tiers. Each tier is fully functional and warranted; the choice comes down to budget, warranty length, and whether the deployment is production-critical or capacity-expansion.
Tier
Discount vs OEM List
Warranty
Best For
New (Sealed OEM)
25–40%
Apple manufacturer warranty (1–5 yr)
Production-critical first-tier
New (Bulk OEM)
50–65%
3-year Pro Disk Network warranty
New cluster builds, secondary tier
Refurbished
75–85%
12-month advance replacement
Capacity expansion, lab, dev/test, EOL refresh
Bulk & Volume Pricing for 661-5587
Ships from our Orlando, FL warehouse — same-day US dispatch on orders placed before 2pm ET. Net 30 terms available for verified businesses, government and education.
Volume discounts on the 661-5587 are automatic at checkout. Net 30 terms available for verified businesses, government, and education. Email sales@prodisknetwork.com for orders above 100 units.
Quantity
Discount
Unit Price
1
0%
$72.84
5+
4%
$69.93
10+
8%
$67.01
25+
13%
$63.37
50+
18%
$59.73
100+
23%
$56.09
What is the 661-5587?
The 661-5587 is a Apple server memory module with capacity 2 GB and pc standard PC3-8500, manufactured by Apple. 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 661-5587
Pros
Recovery from no-POST errors when refreshing aging servers
Drop-in DDR4/DDR5 RDIMM choices across most enterprise sockets
Heat-spreader and tray packaging suitable for production install
Cons
Refurbished tier may show minor cosmetic markings
Single-stick purchases miss volume discount
Not optimised for overclocked workstation builds
Frequently Asked Questions about 661-5587
Is the 661-5587 a genuine Apple part?
Yes. Pro Disk Network sources every 661-5587 as factory-original Apple inventory verified against the manufacturer parts registry before listing. New units arrive sealed in OEM packaging; refurbished units are pulled from decommissioned Apple servers, surface-tested, and re-warranted by Pro Disk Network for 12 months.
What servers is the 661-5587 compatible with?
The 661-5587 is a Apple 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 661-5587 ship?
If in stock, the 661-5587 ships same business day on US orders placed before 2 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 661-5587?
New 661-5587 units carry the full Apple manufacturer warranty (typically 1 to 5 years depending on product line). Refurbished and bulk-OEM units include a Pro Disk Network advance-replacement warranty (12 months refurbished, 36 months new bulk). DOA replacement is free within 30 days of receipt.
Do you offer bulk pricing for the 661-5587?
Yes. Pro Disk Network offers automatic volume discounts at 10, 25, 50, and 100+ unit tiers. Net 30 terms are available for verified businesses, government, and education buyers. Email sales@prodisknetwork.com with the quantity and target ship date for a quote within one business day.
Other parts that share the 661 series prefix — useful when sourcing matched lots, hot-spare pools, or capacity-tier expansions.
661-5500 — 661-5500 - Apple 256GB SATA 2.5-inch Solid State Hard Drive for MacBook Pro A1278 — $2,045.76
661-5501 — 661-5501 - Apple 512GB SATA 2.5-inch Solid State Hard Drive for MacBook Pro A1278 — $3,373.96
661-5502 — 661-5502 - Apple 9.5 mm SATA Super Optical Drive for MacBook 15 — $181.83
661-5510 — 661-5510 - Apple 250GB 5400RPM SATA 3Gb/s 2.5-inch Hard Drive for MacBook A1342 — $575.09
Pro Disk Network Buyer’s Guide: Memory
Compatibility: Rank, Density, and Channel Population Rules
For server memory, three numbers dominate compatibility: rank, density, and channel population. Mixing rank or density in the same channel forces the memory controller to fall back to the lowest-common-denominator speed and timings, sometimes by 200-400 MHz, which wastes the upgrade you just paid for. Before installing the 661-5587, run the platform's memory configuration utility (Dell DSET, HPE iLO Memory tab, Lenovo XCC Memory page) to identify what's already populated.
Pricing Strategy: New, Bulk, or Refurbished
For production tier-1 databases (SAP HANA, Oracle Exadata-equivalent, SQL Server Always On), use new sealed OEM units only. For VDI hosts, hyperconverged clusters, and general-purpose virtualisation, bulk-OEM is the cost-optimal choice. For development environments, lab gear, and capacity expansion on aging hardware, refurbished is appropriate — the price savings are 60-75% versus new.