Replacement for KVR21R1: Drop-In Alternatives We Stock
Looking for a replacement for the KVR21R1 (KVR21R1 - Kingston 8GB PC4-17000 DDR4-2133MHz ECC Registered CL15 RDIMM 1.2V Single-Rank Memory Module w/TS)? Pro Disk Network ships Kingston 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 KVR21R1
| SKU | KVR21R1 |
|---|---|
| Product | KVR21R1 - Kingston 8GB PC4-17000 DDR4-2133MHz ECC Registered CL15 RDIMM 1.2V Single-Rank Memory Module w/TS |
| Current price | $84.66 |
| Stock status | In Stock |
| Detail page | View KVR21R1 › |
Drop-in replacements for KVR21R1
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.
9965589001A00G - Kingston 8GB PC4-17000 DDR4-2133MHz ECC Registered CL15 RDIMM 1.2V Single-Rank Memory Module w/TS
SKU: 9965589001A00G
Price: $89.12
9965600-012 - Kingston 16GB PC4-17000 DDR4-2133MHz ECC Registered CL15 RDIMM 1.2V Dual-Rank Memory Module
SKU: 9965600-012
Price: $96.87
9965640-001.C00G - Kingston 16GB PC4-17000 DDR4-2133MHz ECC Registered CL15 RDIMM 1.2V Dual-Rank Memory Module
SKU: 9965640-001.C00G
Price: $96.87
Kingston KTH-PL421LQ/32B 32GB PC4-17000 DDR4-2133MHz ECC Registered CL15 Load Reduced RDIMM 1.2V Quad-Rank Memory Module
SKU: KTH-PL421LQ-32B
Price: $158.07
HP21D4R5D4MAM-32 - Kingston 32GB PC4-17000 DDR4-2133MHz ECC Registered CL15 RDIMM 1.2V Dual-Rank Memory Module
SKU: HP21D4R5D4MAM-32
Price: $221.05
KG07115510-508 - Kingston 16GB PC4-17000 DDR4-2133MHz ECC Registered CL15 RDIMM 1.2V Dual-Rank Memory Module
SKU: KG07115510-508
Price: $331.67
Kingston Technology KTH-PL421/8G 8GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Memory Module
SKU: KTH-PL421-8G
Price: $89.12
Kingston Technology KTD-PE421/8G 8GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: KTD-PE421-8G
Price: $89.12
Kingston Technology KVR21R15S4/8HA 8GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: KVR21R15S4-8HA
Price: $89.12
9965589-001.A00G - Kingston 8GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module w/TS
SKU: 9965589-001.A00G
Price: $89.12
Kingston Technology KVR21R15S4/8I 8GB DDR4-2133MHz PC4-17000 ECC Registered CL15 288-Pin DIMM 1.2V Single Rank Memory Module
SKU: KVR21R15S4-8I
Price: $89.12
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.