Alternative to CTD421UX16: Better-Value Equivalents in Stock
Comparing the CTD421UX16 (CTD421UX16 - Crucial 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM 1.2V Dual Rank Memory) against alternatives? Pro Disk Network stocks 12 similar Crucial parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the CTD421UX16
| SKU | CTD421UX16 |
|---|---|
| Product | CTD421UX16 - Crucial 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM 1.2V Dual Rank Memory |
| Current price | $253.62 |
| Stock status | In Stock |
| Detail page | View CTD421UX16 › |
Alternatives to CTD421UX16
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.
CT2K8G4RFS4213 - Crucial Technology 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory
SKU: CT2K8G4RFS4213
Price: $163.22
CT2K8G4RFD8213 - Crucial Technology 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Dual Rank Memory
SKU: CT2K8G4RFD8213
Price: $173.55
CT2K8G4SFD8213 - Crucial Technology 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 260-Pin SoDimm 1.2V Memory
SKU: CT2K8G4SFD8213
Price: $208.11
CT2K8G4DFS8213 - Crucial Technology 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM 1.2V Single Rank Memory
SKU: CT2K8G4DFS8213
Price: $234.11
CT10097055 - Crucial 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM Dual Rank Memory for ASUS M32cd4-K
SKU: CT10097055
Price: $253.62
CT10096782 - Crucial 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM Dual Rank Memory for ASUS P10s-M
SKU: CT10096782
Price: $253.62
CT10074811 - Crucial 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM Dual Rank Memory for ASUS Q170m2
SKU: CT10074811
Price: $253.62
CT10043449 - Crucial 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM Dual Rank Memory for ASUS Rog-Strix-Z270i-Gaming
SKU: CT10043449
Price: $253.62
CT10011352 - Crucial 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM Dual Rank Memory for ASUS Prime-H270 Plus
SKU: CT10011352
Price: $253.62
CT10004978 - Crucial 16GB Kit (2 X 8GB) DDR4-2133MHz PC4-17000 non-ECC Unbuffered CL15 288-Pin DIMM Dual Rank Memory for ASUS A320m-C
SKU: CT10004978
Price: $253.62
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.