Replacement for D3NS1866L-4G: Drop-In Alternatives We Stock
Looking for a replacement for the D3NS1866L-4G (D3NS1866L-4G Synology D3NS1866L-4G DDR3L-1866 SODIMM 4GB Notebook Memory)? Pro Disk Network ships drop-in replacements and equivalent modern parts from US inventory. Every alternate below is in-stock today with same-day shipping for orders placed before 2pm ET. If your unit is still under warranty, contact our engineering team — we offer cross-shipping for B2B customers on Net 30 terms.
About the D3NS1866L-4G
| SKU | D3NS1866L-4G |
|---|---|
| Product | D3NS1866L-4G Synology D3NS1866L-4G DDR3L-1866 SODIMM 4GB Notebook Memory |
| Current price | $219.58 |
| Stock status | In Stock |
| Detail page | View D3NS1866L-4G › |
Drop-in replacements for D3NS1866L-4G
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
BD4G1866MTN16 - Black Diamond 4GB DDR3-1866 MHz PC3-14900 non-ECC Unbuffered CL13 204-Pin SODIMM 1.5V 2Rx8 Memory Module
SKU: BD4G1866MTN16
Price: $102.92
0K4NRR - Dell 4GB DDR3-1866 MHz PC3-14900 non- ECC-Unbuffered CL13 204-Pin SODIMM 1.5V Single Rank Memory Module
SKU: 0K4NRR
Price: $159.93
BD4GX21866MTN16 - Black Diamond 8GB Kit (2 x 4GB) DDR3-1866 MHz PC3-14900 non-ECC Unbuffered CL13 204-Pin SODIMM 1.5V 2Rx8 Memory Module
SKU: BD4GX21866MTN16
Price: $195.54
HMT451U7DFR8C-RDTAAD - Hynix 4GB DDR3-1866 MHz PC3-14900 ECC Unbuffered CL13 240-Pin UDIMM 1.5V Single Rank Memory Module
SKU: HMT451U7DFR8C-RDTAAD
Price: $97.83
HMT451U7DFR8C-RDTA - Hynix 4GB DDR3-1866 MHz PC3-14900 ECC Unbuffered CL13 240-Pin UDIMM 1.5V Single Rank Memory Module
SKU: HMT451U7DFR8C-RDTA
Price: $97.83
BD4G1866MT16 - Black Diamond 4GB DDR3-1866 MHz PC3-14900 ECC CL13 240-Pin DIMM 1.5V 2Rx8 Memory Module
SKU: BD4G1866MT16
Price: $102.50
MT18JSF51272PZ-1G9K1KE - Micron 4GB DDR3-1866 MHz PC3-14900 ECC Registered CL13 240-Pin DIMM 1.5V Single Rank Memory Module
SKU: MT18JSF51272PZ-1G9K1KE
Price: $110.07
MT18JSF51272PZ-1G9K1KF - Micron 4GB DDR3-1866 MHz PC3-14900 ECC Registered CL13 240-Pin DIMM 1.5V Single Rank Memory Module
SKU: MT18JSF51272PZ-1G9K1KF
Price: $110.07
W18RB4G8H Super Talent DDR3-1866 4GB/256Mx8 ECC/REG CL13 Hynix Chip Server Memory
SKU: W18RB4G8H
Price: $114.17
BD4G1866MTR17 - Black Diamond 4GB DDR3-1866 MHz PC3-14900 ECC Registered CL13 240-Pin RDIMM 1.5V 2Rx4 Memory Module
SKU: BD4G1866MTR17
Price: $120.95
BD4G1866MTE16 - Black Diamond 4GB DDR3-1866 MHz PC3-14900 ECC CL13 240-Pin DIMM 1.5V 2Rx8 Memory Module
SKU: BD4G1866MTE16
Price: $162.50
How we pick replacements
Every recommendation above was selected using these criteria:
- Drop-in compatibility — same form factor (2.5"/3.5", PCIe slot, SFP port, etc.), so it fits the original chassis without modification
- Equivalent or better performance — matched on RPM/IOPS/speed/throughput, never downgraded
- Same-brand-preferred — we list the OEM-equivalent first when available, then trusted aftermarket
- Warranty coverage — 90-day Pro Disk warranty on every part, with 1-year option for B2B
- In stock today — never recommend a part that is on backorder
Need help confirming compatibility?
Our engineers validate every replacement against your specific server, switch, or chassis model before shipment. Email sales@prodisknetwork.com with your platform model (e.g., Dell PowerEdge R740, HP DL380 Gen10, Cisco Catalyst 9300) and we will confirm the exact part number that drops into your hardware.