Replacement for DISK-300GB-6-7SER: Drop-In Alternatives We Stock
Looking for a replacement for the DISK-300GB-6-7SER (Cisco DISK-300GB-6/7SER 300 GB Internal Hard Drive - 3Gb/s SAS - Hot Swappable)? Pro Disk Network ships Cisco 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 DISK-300GB-6-7SER
| SKU | DISK-300GB-6-7SER |
|---|---|
| Product | Cisco DISK-300GB-6/7SER 300 GB Internal Hard Drive - 3Gb/s SAS - Hot Swappable |
| Current price | $670.86 |
| Stock status | In Stock |
| Detail page | View DISK-300GB-6-7SER › |
Drop-in replacements for DISK-300GB-6-7SER
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.
Cisco NS2G10-300-HS 300 GB Internal Hard Drive - Fibre Channel - 10000 rpm - Hot Swappable
SKU: NS2G10-300-HS
Price: $773.61
Cisco CDE3-SSD-MLC-300 300GB Multi-Level Cell (MLC) SATA 3Gb/s 2.5-inch Solid State Drive with Tray for Gen 3 CDE
SKU: CDE3-SSD-MLC-300
Price: $5,561.22
Cisco DISK-SATA2-250GB=X 250 GB 3.5 Internal Hard Drive - SATA/300 - 7200 rpm - Hot Swappable
SKU: DISK-SATA2-250GB-X
Price: $687.93
Cisco HDD-7816-I4-250 HDD-7816-I4-250= 250 GB 3.5 Internal Hard Drive - SATA/300 - 7200 rpm - Hot Swappable
SKU: HDD-7816-I4-250
Price: $371.63
Cisco HDD-78XX-I5-250 HDD-78XX-I5-250= 250 GB 3.5 Internal Hard Drive - SATA/300 - 7200 rpm
SKU: HDD-78XX-I5-250
Price: $371.63
Cisco CS-MARS-S500-HD 500 GB 3.5 Internal Hard Drive - SATA/300 - Hot Swappable
SKU: CS-MARS-S500-HD
Price: $465.46
R200-D300GB - Cisco 300 GB 3.5 Internal Hard Drive - SAS - 15000 rpm - Hot Swappable
SKU: R200-D300GB
Price: $3,876.70
Cisco HDD-7835-I3-300 300GB 10000RPM SAS 6Gb/s 2.5-inch Hard Drive for MCS-7835-i3
SKU: HDD-7835-I3-300
Price: $485.00
HDD-7835-I3-300-RF - Cisco 300GB 10000RPM SAS 6Gb/s 2.5-inch Hard Drive for MCS-7835-i3
SKU: HDD-7835-I3-300-RF
Price: $2,450.21
ISM-SRE-300-BUN-K9 - Cisco 3900 Series Services Ready Engine (SRE) 300 ISM
SKU: ISM-SRE-300-BUN-K9
Price: $99.55
ISM-SRE-300-K9 - Cisco Services Ready Engine 300 ISM Control Processor
SKU: ISM-SRE-300-K9
Price: $433.95
Cisco DISK-SAS-146GB 146 GB 3.5 Internal Hard Drive - 3Gb/s SAS - Hot Swappable
SKU: DISK-SAS-146GB
Price: $436.67
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.