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SYBA SD-PEX40054 PCI-Express 2.0 x4 SATA III (6.0Gb/s) HyperDuo 4-port RAID Controller Card
  • Owned For: less than 1 day

1 out of 5 eggs Raid 0 does not normally decrease write speed 02/15/2014

This review is from: SYBA SD-PEX40054 PCI-Express 2.0 x4 SATA III (6.0Gb/s) HyperDuo 4-port RAID Controller Card

Pros: Other thoughts.

Cons: Other thoughts.

Other Thoughts: Regarding the manufacturer response for Lloyd L. on 12/4/2013, "Raid 0" does not normally decrease write speed. A quick search on Google or Wikipedia states:

RAID 0
RAID 0 comprises striping (but no parity or mirroring). This level provides no data redundancy nor fault tolerance, but improves performance through parallelism of read and write operations across multiple drives. RAID 0 has no error detection mechanism, so the failure of one disk causes the loss of all data on the array.


Please get your facts straight before defending your possibly faulty product

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SYBA Combo USB 3.0 + SATA III 6Gbps, v2.0 PCI Express, x4 Slot Controller Card Model SD-PEX50055
  • Verified Owner
  • Owned For: 1 month to 1 year

2 out of 5 eggs No improvement over x1 controller cards 02/11/2014

This review is from: SYBA Combo USB 3.0 + SATA III 6Gbps, v2.0 PCI Express, x4 Slot Controller Card Model SD-PEX50055

Pros: Combines "SATA3" and USB3 into 1 PCIE slot.

Cons: Card uses x4 format, but in reality the chips use total of x2, that is x1 for SATA3 and x1 for USB3. There is no bandwidth improvement over any other x1 SATA3 controller card. A x4 format card that only supports x1 bandwidth for SATA, or "SATA2.5" speed.

Other Thoughts: Tested SATA3 performace with Samsung 840 Pro 256GB, with Samsung Magician and CrystalDiskMark. Read is around 400MB/s and write is around 360MB/s. Card is seated in a PCIE 2.0 x16 slot.

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CORSAIR TX Series CMPSU-750TX 750W ATX12V v2.3 SLI CrossFire 80 PLUS BRONZE Certified Active PFC Compatible with New 4th Gen CPU Certified Haswell Ready
  • Verified Owner
  • Owned For: more than 1 year

Pros: Single rail with 60 amp, all the juice is shared among all equipments inside the pc, no juice wasted as with multi-rails.

Cons: 1 of the4 6-pin connectors is not working properly, so I am using a molex-to-6pin adapter to power my GTX280. Power supply itself has no problem with pumping all the juice for my whole pc.

Other Thoughts: Currently powering: i7 920 @ 1.32V, TWO GTX280s SLI, 5 fans, 2 harddrives with no hiccup. 750W of clean power on a single rail is enough for 2 GTX280 in SLI.

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Sing L.'s Profile

Display Name: Sing L.

Date Joined: 10/21/06

  • Reviews: 3
  • Helpfulness: 2
  • First Review: 12/10/09
  • Last Review: 02/15/14
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