Replacement for SAT5221-3840G: Drop-In Alternatives We Stock
Looking for a replacement for the SAT5221-3840G (Synology SAT5221-3840G 3.84TB SATA 6Gb/s 2.5-Inch Internal Solid State Drive)? 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 SAT5221-3840G
| SKU | SAT5221-3840G |
|---|---|
| Product | Synology SAT5221-3840G 3.84TB SATA 6Gb/s 2.5-Inch Internal Solid State Drive |
| Current price | $4,105.26 |
| Stock status | In Stock |
| Detail page | View SAT5221-3840G › |
Drop-in replacements for SAT5221-3840G
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.
SEDC500R/3840G Kingston Enterprise DC500R 3840G 2.5 inch SATA3 Solid State Drive (TLC)
SKU: SEDC500R-3840G
Price: $1,244.97
Kingston SEDC600ME/3840G DC600ME 3.84TB SATA 6Gb/s Mixed Use 2.5-inch Internal Solid State Drive
SKU: SEDC600ME/3840G
Price: $2,061.05
Kingston SEDC450R/3840G Data Center DC450R Series 3.84TB TLC SATA 6Gbps (AES 256-bit) 2.5-inch Solid State Drive
SKU: SEDC450R-3840G
Price: $1,023.70
Synology SAT5221-480G 480GB SATA 6Gb/s 2.5-Inch Internal Solid State Drive
SKU: SAT5221-480G
Price: $410.53
Synology SAT5221-1920G 1.92TB SATA 6Gb/s 2.5-Inch Internal Solid State Drive
SKU: SAT5221-1920G
Price: $2,461.05
SEDC500M/3840G Kingston Enterprise DC500M 3.84TB 2.5 inch SATA3 Solid State Drive (3D TLC)
SKU: SEDC500M-3840G
Price: $1,434.18
Kingston SEDC1500M/3840G DC1500M 3.84TB 3D TLC PCI Express x4 NVMe Gen3 U.2 Enterprise Solid State Drive
SKU: SEDC1500M-3840G
Price: $1,428.88
Hat5300-12T - Synology Enterprise 12Tb Hdd Sata 6Gb/S 7200 Rpm 256Mb Cache 3.5 Inch Internal Hard Drive
SKU: HAT5300-12T
Price: $970.53
DD900000Q1L - Dell sTec 8 Gb Solid State Drive Solid State Hard Drive 1.8-inch Solid State Drive 5mm PATA PCI-e
SKU: DD900000Q1L
Price: $250.53
Hat5300-16T - Synology 16Tb Hat5300 Sata Iii 3.5 Inch Internal Enterprise Hard Drive
SKU: HAT5300-16T
Price: $1,128.42
04X4431 - Lenovo 240GB SATA 6Gb/s 2.5-inch Internal Solid State Drive for ThinkPad
SKU: 04X4431
Price: $141.43
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.