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RAID controllers with cache protection

 prices on 21 model

Cache protection

— cache protection is necessary for preserving data that has already entered the cache but has not yet been written to the disks. Typically, a battery or supercapacitor is used for this purpose: in the event of a power failure, they help the controller avoid losing incomplete write operations.

This function is especially important when the write-back cache is enabled, where the speed is higher, but some data is temporarily stored in the controller's memory. Without protection, a sudden power outage can lead to data loss or array damage.
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RAID controller BROADCOM MegaRAID 9460-16i
BROADCOM MegaRAID 9460-16i
RAID array:1, 5, 6, 10, 50, 60, JBOD
Cache memory:4 GB, protective gear
Connection ports:4xSFF-8643 (internal)
Board length:168 mm
Price from $569.00 up to $683.00 
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RAID controller Adaptec 2270800-R
Adaptec 2270800-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:128 MB, protective gear
Connection ports:1xSFF-8087 (internal)
Board length:167 mm
Price from $116.06 up to $124.00 
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RAID controller Adaptec 2274200-R
Adaptec 2274200-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:1 GB, protective gear
Connection ports:2xSFF-8643 (internal)
Board length:167 mm
Price from $79.00 up to $220.00 
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RAID controller Adaptec 2274900-R
Adaptec 2274900-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:1 GB, protective gear
Connection ports:6xSFF-8643 (internal)
Board length:167 mm
Price from $239.00 up to $350.00 
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RAID controller BROADCOM MegaRAID 9480-8i8e
BROADCOM MegaRAID 9480-8i8e
RAID array:1, 5, 6, 10, 50, 60, JBOD
Cache memory:4 GB, protective gear
Connection ports:2xSFF-8644 (external), 2xSFF-8643 (internal)
Board length:168 mm
Price from $889.00
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RAID controller Adaptec 2258500-R
Adaptec 2258500-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:512 MB, protective gear
Connection ports:4xSFF-8087 (internal), 1xSFF-8088 (external)
Board length:167 mm
Price from $1,983.83
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RAID controller Adaptec 2271100-R
Adaptec 2271100-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:512 MB, protective gear
Connection ports:1xSFF-8087 (internal)
Board length:167 mm
Price from $417.28
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RAID controller Adaptec 2274300-R
Adaptec 2274300-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:1 GB, protective gear
Connection ports:2xSFF-8643 (internal)
Board length:167 mm
Price from $1,102.00
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RAID controller Adaptec 2274600-R
Adaptec 2274600-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:1 GB, protective gear
Connection ports:4xSFF-8643 (internal)
Board length:167 mm
Price from $1,336.92
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RAID controller Adaptec 2280900-R
Adaptec 2280900-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:4 GB, protective gear
Connection ports:4xSFF-8644 (external), 2xSFF-8643 (internal)
Board length:167 mm
Price from $131.00 up to $160.00 
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RAID controller Adaptec 2278300-R
Adaptec 2278300-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:1 GB, protective gear
Connection ports:4xSFF-8643 (internal)
Board length:167 mm
Price from $563.00
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RAID controller Adaptec 2274700-R
Adaptec 2274700-R
RAID array:1, 1E, 5, 6, 10, 50, 60, JBOD, Hybrid RAID
Cache memory:1 GB, protective gear
Connection ports:4xSFF-8643 (internal)
Board length:167 mm
Price from $1,095.53
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RAID controller Adaptec 3154-8e
Adaptec 3154-8e
RAID array:1, 5, 6, 10, 50, 60
Cache memory:2 GB, protective gear
Connection ports:2xSFF-8644 (external)
Price from $729.00
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RAID controller Adaptec 3154-8i
Adaptec 3154-8i
RAID array:1, 5, 6, 10, 50, 60
Cache memory:4 GB, protective gear
Connection ports:2xSFF-8643 (internal)
Board length:167 mm
Price from $649.75
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RAID controller Adaptec 3151-4i
Adaptec 3151-4i
RAID array:1, 5, 6, 10, 50, 60
Cache memory:1 GB, protective gear
Connection ports:1xSFF-8643 (internal)
Board length:167 mm
Price from $743.42
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