Best Fully Buffered Memory in 2026
Daisy
Last Updated: Feb 7, 2026
Daisy
Last Updated: Feb 7, 2026
![8GB [2x4GB] Fully-Buffered FBDIMM Memory RAM Upgrade for the Dell PowerEdge 1950, 2900, 2950 Systems (DDR2-667, PC2-5300F, FBDIMM)](https://m.media-amazon.com/images/I/41Mdj8YdAuL._AC_SL500_.jpg)
* PickSmartly editors independently research, review, and endorse the top products through comprehensive data analysis. We may earn a commission for qualifying purchases made through our product links.
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| AoHina | 9.79 | ❌ | ❌ | ❌ |
32GB Kit (8x4GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory
Capacity: 32GB
Designed for the Dell PowerEdge 1900 1950 1950 III 1955 2900 2900 III 2950 2950 III M600 R900 SC1430 T110 PowerVault NF500 NF600 NX1950 Workstation 690 (750W Chassis) Precision Workstation 490 Precision Workstation 690 (1KW Chassis) 690n (1KW Chassis) and (750W Chassis) R5400 64bit R5400 N-Series T5400 T7400 Studio Hybrid 140G
240-Pin DIMM
Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
32GB Kit (8x4GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory
Genuine A-Tech Memory
Designed for the Dell PowerEdge 1900 1950 1950 III 1955 2900 2900 III 2950 2950 III M600 R900 SC1430 T110 PowerVault NF500 NF600 NX1950 Workstation 690 (750W Chassis) Precision Workstation 490 Precision Workstation 690 (1KW Chassis) 690n (1KW Chassis) and (750W Chassis) R5400 64bit R5400 N-Series T5400 T7400 Studio Hybrid 140G
Toll Free Technical Support
Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 7.75 | ❌ | ❌ | ❌ |
8GB Kit ( 2 x 4GB modules)
Upgrade for Dell PowerEdge Models: 1950, 2900, 2950.
No Warranty as this is generic
If you receive an error message or hear a series of beeps, your system may not be recognizing the new memory. Remove and reinstall the modules to ensure they are securely seated in the sockets.
If you get a memory mismatch message, follow the prompts to enter the Setup menu, and then select Save and Exit. (This is not an error—some systems must do this to update the system settings.)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
16GB Kit (4x4GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory
Genuine A-Tech Memory
Designed for the Dell PowerEdge 1900 1950 1950 III 1955 2900 2900 III 2950 2950 III M600 R900 SC1430 T110 PowerVault NF500 NF600 NX1950 Workstation 690 (750W Chassis) Precision Workstation 490 Precision Workstation 690 (1KW Chassis) 690n (1KW Chassis) and (750W Chassis) R5400 64bit R5400 N-Series T5400 T7400 Studio Hybrid 140G
Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
16GB Kit (8x2GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory
Genuine A-Tech Memory
Compatible with many Servers, Motherboards, and Mainboards
Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 7.75 | ❌ | ❌ | ❌ |
Fully Buffered, ECC,240-pin, Server Memory
CAS Latency (CL): 5
Compatible Models :HP/Compaq ProLiant BL20p G4 Server BladeHP/Compaq ProLiant BL460c Server Blade G1HP/Compaq ProLiant BL480c Server BladeHP/Compaq ProLiant BL680c G5HP/Compaq ProLiant DL140 G3HP/Compaq ProLiant DL160 G5HP/Compaq ProLiant DL380 G5HP/Compaq ProLiant DL580 G5HP/Compaq ProLiant ML150 G3HP/Compaq ProLiant ML350 G5HP/Compaq ProLiant ML370 G5HP/Compaq ProLiant xw460c Blade WorkstationHP/Compaq StorageWorks All-in-One 400rHP/Compaq Workstation xw6400HP/Compaq Workstation xw6600HP/Compaq Workstation xw8400HP/Compaq Workstation xw8600
FBDIMM for servers[server memory]
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
8GB KIT (2 x 4GB) DIMM DDR2 ECC Fully Buffered PC2-5300 667MHz RAM Memory
Designed for the HP-Compaq Workstation Series: xw6400, xw6600, xw8400, xw8600
**NOT compatible with Desktop or Laptop computers**
All A-Tech modules undergo stringent quality assurance testing to ensure high performance and reliability
A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
Genuine ATech Memory
Lifetime Warranty
8GB KIT 4 x 2GB DIMM DDR2 ECC Fully Buffered PC2 5300 PC2 5300F 667MHz RAM Memory
Designed For Dell Precision Workstation Series
See Compatibility List Below
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
8GB Kit ( 2x 4GB Modules ) | DDR2 667MHz PC2-5300F | DDR2 ECC FBDIMM ( Fully Buffered DIMM) | 240-Pin DIMM
High performance Memory RAM upgrade designed for *SERVERS only*
*NOT compatible for Desktop or laptop computers* | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
All modules undergo quality assurance testing to ensure dependable and reliable performance
A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
16GB KIT (4 x 4GB) DIMM DDR2 ECC Fully Buffered PC2-4200 533MHz RAM Memory
Genuine A-Tech Memory
Lifetime Warranty
Designed For Dell PowerEdge Series. (See Compatibility List Below)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Memorybank | 9.62 | ❌ | ❌ | ❌ |
240Pin DDR2 Fully Buffered Dual In-line Memory Module (FB-DIMM)
16GB Kit (4pcs of 4GB)
PC2-6400 / 800MHz, CL5
72-bit wide, Error Correcting Code (ECC)
Genuine Samsung or Micron board/memory chips
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
16GB KIT (4 x 4GB) DIMM DDR2 ECC Fully Buffered PC2-5300 667MHz RAM Memory
Genuine A-Tech Memory
Lifetime Warranty
Designed For Intel S Series. (See Compatibility List Below)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 8.15 | ❌ | ❌ | ❌ |
240Pin DDR2 Fully Buffered Dual In-line Memory Module (FB-DIMM)
8GB Kit (4pcs of 2GB)
PC2-5300 / 667MHz, CL5
72-bit wide, Error Correcting Code (ECC)
e-applejuice P/N: FZD2FB2GB667-C5
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Computer Memory Solutions ™ | 9.74 | ❌ | ❌ | ❌ |
Computer Memory Solutions guarantees compatibility with models provided in description.
Memory Type: Fully Buffered DIMM, 240-Pin
Speed: DDR2-5300, 667 MHz
4 Piece Kit
Product appearance may vary. Picture for reference only. limited lifetime warranty when bought directly from computer memory solutions
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| ZMAX TECH | 9.77 | ❌ | ❌ | ❌ |
Increases system performance
Easy to install
Premium quality memory from a trusted brand
100% Tested
Limited Lifetime Warranty
to use fully buffered DIMMs, your server or motherboard must use FBDIMM architecture. An FBDIMM will not fit into a standard DDR2 socket, and a DDR2 module will not fit into an FBDIMM socket
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| JAPAN＜Express shipping | 6.77 | ❌ | ❌ | ❌ |
Komputerbay 32GB (4x 8GB) DDR2 PC2-6400F 800MHz CL5 ECC Fully Buffered FB-DIMM (240 PIN) w/ Apple Heatspreaders FOR MAC PRO
ECC Fully Buffered (an FBDIMM will not fit into a standard DDR2 socket, and a DDR2 module will not fit into an FBDIMM socket)
Speed: PC2-6400F 800MHz
This RAM is for servers only. Will not work with personal computers.
100% Tested, Limited Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| parts-quick | 7.91 | ❌ | ❌ | ❌ |
Capacity: 4GB 2 X 2GB Kit FULLY BUFFERED DIMM FB LOW POWER MEMORY
Form Factor: 240 pin DIMM
Warranty: Lifetime
ONLY FOR THE SERVER LISTED
DO NOT BUY FOR STANDARD DESKTOPS WHICH USE NON-ECC MEMORY
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
32GB KIT (8 x 4GB) DIMM DDR2 ECC Fully Buffered PC2-5300 667MHz RAM Memory
Genuine A-Tech Memory
Lifetime Warranty
Designed For Dell Precision Workstation Series. (See Compatibility List Below)
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 7.90 | ❌ | ❌ | ❌ |
240Pin DDR2 Fully Buffered Dual In-line Memory Module (FB-DIMM)
32GB Kit (8pcs of 4GB)
PC2-6400 / 800MHz, CL5
72-bit wide, Error Correcting Code (ECC)
Genuine Samsung or Micron board/memory chips
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
16GB Kit (8x2GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory
Genuine A-Tech Memory
Designed for the Dell PowerEdge 1900 1950 1950 III 1955 2900 2900 III 2950 2950 III M600 R900 SC1430 T110 PowerVault NF500 NF600 NX1950 Workstation 690 (750W Chassis) Precision Workstation 490 Precision Workstation 690 (1KW Chassis) 690n (1KW Chassis) and (750W Chassis) R5400 64bit R5400 N-Series T5400 T7400 Studio Hybrid 140G
Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 7.75 | ❌ | ❌ | ❌ |
4 GB : 2 x 2 GB - Fully Buffered-DIMM
Package Dimensions: 1.4 H x 8.6 L x 15 W (centimeters)
Package Weight: 0.26 pounds
Country of Origin : China
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Komputerbay | 9.80 | ✅ | ✅ | ✅ |
ECC Fully Buffered (an FBDIMM will not fit into a standard DDR2 socket, and a DDR2 module will not fit into an FBDIMM socket)
Capacity: 8GB For Apple Mac Pro (8-core) Desktop
Speed: PC2-5300F 667MHz
240-Pin DIMM
Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
Hp-imsourcing Ims Spare 16gb (2x8gb) Dual Rank Pc2-5300 (ddr2-667) Registered Memory Kit - 16 Gb (2 X 8 Gb) - Ddr2 Sdram - 667 Mhz Ddr2-667/pc2-5300 - Ecc - Registered - 240-pin - Dimm
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
4GB Kit (2x2GB) PC2-5300 DDR2 ECC Fully Buffered Server Memory
Genuine A-Tech Memory
Designed for the Dell POWEREDGE 1900 / 1950 / 1950 III / 1955 / 2900 / 2900 III / 2950 / 2950 III / M600 / R900 / SC1430 / T110 / POWERVAULT NF500 / NF600 / NX1950 / PRECISION WORKSTATION 490 / PRECISION WORKSTATION 690 (750W Chassis) or (1KW Chassis) / 690n (1KW Chassis) or (750W Chassis) / PRECISION R5400 and R5400-N Series / PRECISION T5400 / PRECISION T7400 / Studio Hybrid 140G
Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 8.15 | ❌ | ❌ | ❌ |
Capacity INFO: 32GB (4x8GB) DDR2-800MHz PC2-6400 ECC FBDIMM 2Rx4 1.8V Fully Buffered Memory for Server/Workstation
Versatile Functionality: Increase bandwidth by up to 30-Percent, Reduce power consumption by up to 40-Percent and extend battery life, Faster burst access speeds for improved sequential data throughput
Lifetime Warranty: If for any reason you're not completely satisfied with our RAM Memory, please feel free to contact us we will provide you with our best service possible.
Easy Installation: Designed For Easy Installation And For Maximum Compatibility. Please refer to your system's manual to verify compatibility criteria.
MemoryMasters provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Komputerbay | 9.80 | ✅ | ✅ | ✅ |
Komputerbay 64GB (8x 8GB) DDR2 PC2-6400F 800MHz CL5 ECC Fully Buffered FB-DIMM (240 PIN) w/ Apple Heatspreaders FOR MAC PRO
ECC Fully Buffered (an FBDIMM will not fit into a standard DDR2 socket, and a DDR2 module will not fit into an FBDIMM socket)
Speed: PC2-6400F 800MHz
This RAM is for MAC PRO only. Will not work with personal computers.
100% Tested, Limited Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| MemoryMasters | 8.15 | ❌ | ❌ | ❌ |
ECC Fully Buffered (an FBDIMM will not fit into a standard DDR2 socket, and a DDR2 module will not fit into an FBDIMM socket)
Capacity: 4GB For Apple Mac Pro (8-core) Desktop
Speed: PC2-6400F 800MHz
240-Pin FBDIMM Fully Buffered
Lifetime Warranty
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
8GB DDR2 PC2-5300 2rx4 1.8v ECC FULLY BUFFERED SERVER Memory Module (240-pin DIMM 667MHz)
WARNING! This module is ECC FULLY BUFFERED! All modules in your system MUST be the same ECC Type in order to properly function
A-Tech Brand Lifetime Warranty! Toll Free Technical Support
Compatible replacement for Kingston KTD-WS667/16G
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| A-Tech Components | 9.91 | ❌ | ❌ | ❌ |
1GB DDR2 PC2-5300 2rx8 1.8v ECC FULLY BUFFERED SERVER Memory Module (240-pin DIMM 667MHz)
WARNING! This module is ECC FULLY BUFFERED! All modules in your system MUST be the same ECC Type in order to properly function
A-Tech Brand Lifetime Warranty! Toll Free Technical Support
Compatible replacement for HP 398706-051
| SELLER | SELLER SCORE | AMAZON FULFILLED | PRIME | FREE SHIPPING |
|---|---|---|---|---|
| Computer Memory Solutions ™ | 9.74 | ❌ | ❌ | ❌ |
Computer Memory Solutions guarantees compatibility with models provided in description.
Memory Type: Fully Buffered DIMM, 240-Pin
Speed: DDR2-5300, 667 MHz
2 Piece Kit
Product appearance may vary. Picture for reference only. limited lifetime warranty when bought directly from computer memory solutions
Here is the list of top-rated brands that were evaluated by PM.
| Brand | Count |
|---|---|
| A-Tech Components | 7 |
| A-Tech | 6 |
| Komputerbay | 4 |
| E-Applejuice | 3 |
| Computer Memory Solutions | 2 |
| Kingston | 2 |
| Memorymasters | 2 |
| Artist Unknown | 1 |
| Crucial | 1 |
| Hp | 1 |
We've carried out a comprehensive analysis of 752 reviews on memory fully buffered, using our selection criteria to identify the best options in the health & household products. Our findings reveal that most customers typically select memory fully buffered priced around $64.16, with top brands including neuriva, a-tech, a-tech components, parts-quick, komputerbay, kingston, computer memory solutions, artist unknown and hp and e-applejuice
Our team of expert editors reviewed these high-quality items and handpicked the top 30 memory fully buffered for your consideration. We've also done extensive research on numerous sellers, identifying the best ones in the health & household products category. These include amazon.com, a-tech components, parts-quick, komputerbay, memorymasters, computer memory solutions ™, memorybank, aohina and zmax tech and health us store .
We are dedicated to assisting our users in finding the right memory Products based on their needs, saving them considerable time when choosing which memory fully buffered to buy. We take pride in the number of satisfied users we've helped through our thorough and insightful reviews.
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![8Gb [2X4Gb] Fully-Buffered Fbdimm Memory Ram Upgrade For The Dell Poweredge 1950, 2900, 2950 Systems (Ddr2-667, Pc2-5300F, Fbdimm) #TOP3](https://m.media-amazon.com/images/I/41Mdj8YdAuL._SL500_.jpg)
