- EXTERNAL GRAPHICS CARD FOR LAPTOP قیمت 1080P
- EXTERNAL GRAPHICS CARD FOR LAPTOP قیمت UPGRADE
- EXTERNAL GRAPHICS CARD FOR LAPTOP قیمت SERIES
Allframe technology streamlines performance based on a known workload.įor downsides of WD Purple vs. No Rotational Vibration sensor till you get above 3 TB.Īdvantages of the WD Purple over the Seagate at the 3 TB level is 1) better website to select the drive you need 2) lower power use 3) if you will be reviewing video from your cameras fairly often WD assumes you will be doing this 20% of the time vs Seagate thinking you will do this 5% of the time. Corrosion resistant components start at 4 TB and above in this product line.Īs a contrast, Seagate assume that Reading is only 5% of the workload, their website is not as directed toward the home/non-IT consumer but they have a “Safe and Smart Selection” white paper. No RAFF limits you to 8 drives in a system. You don’t have to do the calculations yourself. Their website is pretty amazing in helping decide what drive you need to buy based on: number and type of cameras, how many days of video you need to store, etc. WD assumes that you will be Reading back video 20% of the time. WD Purple drives market “AllFrame” technology which is a tuned system for writing up to 64 camera streams without losing data 24/7. Surveillance drives are tuned to not lose frames when writing while their reading efficiency is mostly a secondary concern.
EXTERNAL GRAPHICS CARD FOR LAPTOP قیمت 1080P
Your typical 1080p IP camera generates a H.264 or H.265 data stream well under 2 MB/sec.
This drive supports 145 MB/sec sustained data transfer rates with a 6Gb/sec SATA interface. What video security systems have in common is that they have to spend most of the time writing multiple data streams continuously (at relatively low data rates per stream) while spending only a minimal amount of time reading from disk. They achieve “enterprise” disk levels of performance at a fraction of the cost as long as they are used in their very specific task niche.
EXTERNAL GRAPHICS CARD FOR LAPTOP قیمت SERIES
The two main contenders are the WD Purple series (this) and the Seagate Surveillance series. Home and small business systems that involve up to a few dozen cameras and have the need to be cost efficient are the target for “Surveillance Specific” hard drives. Pros: The video surveillance market continues to grow and as cameras in increase in resolution, storage needs increase. We Can Help You Find The Perfect Storage For Your System.Īdditional Information Date First Available The WD Purple Drive Is Designed For Both Dvr And Nvr Security Systems, And Is Compatible With Many Of The The Leading Surveillance And Security Manufacturers. Intelliseek Technology Helps Reduce Damaging Ambient Noise And Vibrations. Low Power Consumption Is A Must In A High-Temperature, Always-On Surveillance Environment. With A Wide Range Of Industry-Leading Enclosures And Chipsets Supported, You're Sure To Find The Configuration And Compatibility That's Right For Your Nvr.
EXTERNAL GRAPHICS CARD FOR LAPTOP قیمت UPGRADE
WD Purple drives are optimized to support up to 64 cameras, giving you flexibility to upgrade or expand your security system. WD Purple drives have been engineered specifically for the extreme demands of high temperature, 24/7 surveillance systems.įrom a worldwide leader in the storage industry, WD Purple is engineered for quality video playback when you need it most. Learn more about the Western Digital WD62PURZ Best Seller Ranking
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