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Lenovo 16GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank x8 Memory Module - 7X77A01303

Lenovo 16GB 2666MHz DDR4 PC4-21300 ECC Registered CL19 288-Pin DIMM 1.2V Dual Rank x8 Memory Module - 7X77A01303

Part Number: 7X77A01303
Manufacturer: Lenovo

Condition: Refurbished

Weight: 0.1 lbs

AvailabilityIn stock

Regular price $295.00
Regular price Sale price $295.00
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Lenovo 16GB DDR4-2666 ECC Registered DIMM — 7X77A01303

The Lenovo 7X77A01303 is a 16GB DDR4-2666 (PC4-21300) ECC Registered DIMM operating at 1.2V with CL19 latency in a dual rank x8 configuration. Designed for Lenovo ThinkSystem servers supporting DDR4-2666 RDIMM, it delivers reliable ECC registered server memory for enterprise workloads on DDR4-2666 platforms.

Key Features

  • 16GB DDR4-2666 (PC4-21300) — server RDIMM for DDR4-2666 platforms
  • ECC Registered (RDIMM) — error correction and signal buffering
  • Dual Rank x8
  • 1.2V operating voltage
  • CL19 latency
  • 288-pin DIMM — standard server memory interface
  • Validated for Lenovo ThinkSystem servers

Product Specifications

  • Part Number: 7X77A01303
  • Manufacturer: Lenovo
  • OEM Status: OEM Lenovo ThinkSystem
  • Capacity: 16GB
  • Speed: DDR4-2666 (PC4-21300)
  • Type: ECC Registered DIMM (RDIMM)
  • Form Factor: 288-Pin DIMM
  • Voltage: 1.2V
  • CAS Latency: CL19
  • Rank: Dual Rank x8

Memory Specifications

  • Capacity: 16GB
  • DDR Generation: DDR4
  • Speed: 2666MHz (PC4-21300)
  • CAS Latency: CL19
  • Voltage: 1.2V
  • ECC: Yes
  • Buffered: Registered (RDIMM)
  • Rank: Dual Rank x8
  • Form Factor: 288-Pin DIMM

Performance Specifications

  • Bandwidth: Up to 21,300 MB/s (PC4-21300)
  • Operating Temperature: 0°C to 85°C

Use Cases

  • Server memory for Lenovo ThinkSystem DDR4-2666 platforms
  • Virtualization, database, and analytics workloads
  • Memory expansion for existing DDR4-2666 ThinkSystem deployments

Compatibility

  • Lenovo ThinkSystem servers supporting DDR4-2666 RDIMM
  • Not compatible with consumer desktop or laptop platforms
  • Verify Lenovo ThinkSystem compatibility matrix for specific server models

Frequently Asked Questions

What is the difference between Dual Rank x8 and Dual Rank x4?
x4 chips support SDDC (Single Device Data Correction) for enhanced RAS, preferred for mission-critical workloads. x8 chips are more common and cost-effective. Choose x4 for maximum reliability, x8 for cost efficiency.
Is this compatible with non-Lenovo servers?
This is an OEM Lenovo ThinkSystem RDIMM validated for ThinkSystem servers. Compatibility with non-Lenovo servers is not guaranteed.
Can DDR4-2666 RDIMMs run in DDR4-3200 servers?
Yes, DDR4-2666 modules can run in DDR4-3200 servers but will operate at DDR4-2666 speed. For maximum performance, use DDR4-3200 RDIMMs in DDR4-3200 platforms.

The Lenovo 7X77A01303 delivers 16GB of DDR4-2666 ECC Registered server memory in a dual rank x8 configuration — validated for Lenovo ThinkSystem servers requiring reliable RDIMM for DDR4-2666 enterprise deployments.

Frequently Asked Questions

Why do I see an incorrect image for this item?

Product images are meant for illustrative purposes alone, and you may not always see the original image.

What do you mean by term Refurbished?

Refurbished means a used computer part or device that has been cleaned, checked, and repaired to make sure it works properly again. Unlike regular second-hand items, refurbished products go through testing and fixing so they can perform like new.

How many days does it take to ship goods to customers?

All orders are processed within 1-2 business days. Orders placed on weekends or public holidays will be processed on the next business day. For more info visit shipping policy.

What is your return policy?

Our Return Policy comprises a 30-day warranty for Refurbished products. There will be a restocking fee applied when you return non-defective returns. For further details, kindly take a look at our Return Policy page.

Do you deliver my ordered items in their original retail box?

For Brand New items, you will receive them in their original retail box. For Refurbished items, you will receive them in a Brown Box or Bulk Packaging.

Do your printers come with ink cartridges?

Refurbished printers do not come with ink cartridges or toners.