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Synology RackStation RS2421+ Recommended RAM/Memory

Synology RackStation RS2421+
Wrong device? View all Synology NAS Servers, View the full RackStation RS Series or Find your Device

All the following Kingston RAM/Memory upgrades are guaranteed compatible with your Synology RackStation RS2421+ NAS Server. Free delivery & Free returns when you buy direct from KingstonMemoryShop.

Guaranteed Compatible - 100% Moneyback Guarantee
Filters
Device Specifications
Maximum Memory 32GB
Maximum Memory Per Slot 16GB ECC
Number Of Memory Sockets 2
Device Specifications
Make & Model: Synology RackStation RS2421+
Device Type: NAS Server
Memory RAM Type DIMM
Error Check ECC Unbuffered
Memory Speed 2666MT/s (PC4-21300)
Number Of Memory Sockets 2
Maximum Memory 32GB
Maximum Memory Per Slot 16GB ECC
Memory Form Factor DDR4
Memory Voltage 1.2v
Synology Support: https://account.synology.com/support/support_form.php

2666MT/s DDR4 ECC Unbuffered RAM Memory

Capacity: 16GB DDR4 ECC Unbuffered DIMM 16GB ECC Unbuffered (2Rx8)
Capacity: 16GB DDR4 ECC Unbuffered DIMM
Capacity: 16GB DDR4 ECC Unbuffered DIMM
Capacity: 16GB DDR4 ECC Unbuffered DIMM
KSM26ED8/16HD
Memory Speed: 2666MT/s
Read Reviews (2)
  • Capacity: 16GB DDR4 ECC Unbuffered DIMM
  • Module Type: DIMM
  • Type/Error Check: ECC Unbuffered
  • Memory Form Factor: DDR4 1.2v
  • Memory Speed: 2666MT/s (PC4-21300)
  • CAS Latency (CL): CL19
  • DRAM Specifics: 8Gbit, 2R (Dual Rank), x8
  • Brand: Kingston
  • Warranty: Lifetime
100% Moneyback Guarantee Compatible Synology RackStation RS2421+ NAS Server Upgrade
£69.52 (inc. VAT) £57.93 (ex. VAT)
Includes Free Delivery To UK
In Stock For Next Business Day Delivery - Order By 4.30pm*
Free UK Delivery View Delivery Options & International Rates
Want it despatched Friday 27th? Order within 1day 23hrs 31mins
Capacity: 16GB DDR4 ECC Unbuffered DIMM 16GB ECC Unbuffered (2Rx8)
Capacity: 16GB DDR4 ECC Unbuffered DIMM
Capacity: 16GB DDR4 ECC Unbuffered DIMM
Capacity: 16GB DDR4 ECC Unbuffered DIMM
KSM26ED8/16MR
Memory Speed: 2666MT/s
  • Capacity: 16GB DDR4 ECC Unbuffered DIMM
  • Module Type: DIMM
  • Type/Error Check: ECC Unbuffered
  • Memory Form Factor: DDR4 1.2v
  • Memory Speed: 2666MT/s (PC4-21300)
  • CAS Latency (CL): CL19
  • DRAM Specifics: 8Gbit, 2R (Dual Rank), x8
  • Brand: Kingston
  • Warranty: Lifetime
100% Moneyback Guarantee Compatible Synology RackStation RS2421+ NAS Server Upgrade
£69.52 (inc. VAT) £57.93 (ex. VAT)
Includes Free Delivery To UK
In Stock For 2 Business Day Delivery*
Free UK Delivery View Delivery Options & International Rates
Capacity: 8GB DDR4 ECC Unbuffered DIMM 8GB ECC Unbuffered (1Rx8)
Capacity: 8GB DDR4 ECC Unbuffered DIMM
Capacity: 8GB DDR4 ECC Unbuffered DIMM
Capacity: 8GB DDR4 ECC Unbuffered DIMM
KSM26ES8/8HD
Memory Speed: 2666MT/s
  • Capacity: 8GB DDR4 ECC Unbuffered DIMM
  • Module Type: DIMM
  • Type/Error Check: ECC Unbuffered
  • Memory Form Factor: DDR4 1.2v
  • Memory Speed: 2666MT/s (PC4-21300)
  • CAS Latency (CL): CL19
  • DRAM Specifics: 8Gbit, 1R (Single Rank), x8
  • Brand: Kingston
  • Warranty: Lifetime
100% Moneyback Guarantee Compatible Synology RackStation RS2421+ NAS Server Upgrade
£43.38 (inc. VAT) £36.15 (ex. VAT)
Includes Free Delivery To UK
In Stock
Free UK Delivery View Delivery Options & International Rates
Want it despatched Friday 27th? Order within 1day 23hrs 31mins
Capacity: 8GB DDR4 ECC Unbuffered DIMM 8GB ECC Unbuffered (1Rx8)
Capacity: 8GB DDR4 ECC Unbuffered DIMM
Capacity: 8GB DDR4 ECC Unbuffered DIMM
Capacity: 8GB DDR4 ECC Unbuffered DIMM
KSM26ES8/8MR
Memory Speed: 2666MT/s
  • Capacity: 8GB DDR4 ECC Unbuffered DIMM
  • Module Type: DIMM
  • Type/Error Check: ECC Unbuffered
  • Memory Form Factor: DDR4 1.2v
  • Memory Speed: 2666MT/s (PC4-21300)
  • CAS Latency (CL): CL19
  • DRAM Specifics: 8Gbit, 1R (Single Rank), x8
  • Brand: Kingston
  • Warranty: Lifetime
100% Moneyback Guarantee Compatible Synology RackStation RS2421+ NAS Server Upgrade
£43.38 (inc. VAT) £36.15 (ex. VAT)
Includes Free Delivery To UK
In Stock
Free UK Delivery View Delivery Options & International Rates
Want it despatched Friday 27th? Order within 1day 23hrs 31mins
Synology RackStation RS2421+

Kingston compatible Synology RackStation RS2421+ RAM/Memory Upgrades.

Guaranteed Kingston compatible memory upgrades for your Synology RackStation RS2421+ NAS Server. Backed by a lifetime warranty Kingston memory is an excellent choice if you are looking to upgrade, add more memory or build a system from the ground up. Kingston test and qualify all their matched upgrades extensively meaning guaranteed compatibility when matched with your Synology RackStation RS2421+ NAS Server.

Your Synology RackStation RS2421+ is compatible with 8GB and 16GB modules per slot. The choice is yours, but adding in the highest capacity module per slot will give you the best performance. Your system can accept memory frequencies of 2666MT/s (PC4-21300) but please note faster memory will clock down dependent on your Synology RackStation RS2421+'s CPU model.

Your Synology RackStation RS2421+ uses DDR4 DIMM's only.

DRAM Upgrade/Installation Notes.

- Higher frequency memory (measured in MT/s) will clock down to run at optimal speed within your Synology RackStation RS2421+
NAS Server depending on processor model and number of modules installed.

- Install identical modules for best performance where possible where you have two slots or more.

About KingstonMemoryShop.

KingstonMemoryShop is a UK based, independent reseller of Kingston memory and storage products offering an unrivalled knowledgable service of the sale of Kingston products. We ship all products from the UK.

Read more Read less
Delivery Costs

 

KingstonMemoryShop despatch times:

 

Day/Time Of Order Same Day Despatch Expected Despatch Date
Monday-Friday (Up to 4pm) Yes. Same day.
Monday-Friday (After 4pm) No Next working day. If ordered after 4pm on a Friday the despatch date will be the following Monday (excluding public holidays).
Saturday-Sunday N/A The following Monday excluding public holidays.

United Kingdom (Inc Channel Islands);

Next Working Day By 1pm (Royal Mail Guaranteed Next Working) - £7.99.

Tracked24 (Royal Mail Estimated Next Working Day) - £4.99.

Economy (Royal Mail Estimated 3-5 working days) - £FREE.

Express Courier (DPD/DHL/TNT/UPS) - £7.99.

Our Customer Reviews
Easy ordering, quick delivery  
ekomi customer feedback
on 2022-12-09
Great service, would use again  
ekomi customer feedback
on 2022-12-06
Tried to find the guide to identifying the type of RAM I required for my PC. Couldn't find it, but used the "Chat" facility, and it was very helpful in providing the part no I required. I ordered it and fitted the other day. All is well.  
ekomi customer feedback
on 2022-12-05
Works perfectly in the J10. Thank you Kingston.  
ekomi customer feedback
on 2022-12-02
Very good communication love the way they check for compatibility with the device the memory is going in to reduce returnees and gives me price of mind that I have ordered the right one  
ekomi customer feedback
on 2022-11-30
Fast, efficient service. I raised a query about pricing and this was dealt with quickly. Happy buyer!  
ekomi customer feedback
on 2022-11-29
ekomi gold customer feedback

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Gold Seal of Approval!

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