About this item:
The SI-PEX40137 8-Port PCI Express 2.0 SATA Controller Card adds 8 AHCI SATA III ports to a computer through a PCIe x4 or larger slot, delivering multiple internal 6Gbps connections for high-performance hard drives and Solid State Drives (SSDs).
The SI-PEX40137 uses two Marvell 9215 that can be used for embedded platform applications such as home NAS/media servers, DVR/NVR and set-top boxes, or vendors can develop their own software RAID boxes with FreeNAS.
This PCIe SATA 6gbps card is backed by a 3-year sybausa.com warranty and free lifetime technical support.
3.4 out of 5
68.57% of customers are satisfied
5.0 out of 5 stars Fast HBA, works great in TrueNAS
Some reviews state this card is slow. Some reviews state this card doesn't work correctly. Well, some reviews are wrong, or the reviewers haven't set stuff up correctly.Card has three chips on it - two Marvell SATA controllers, and a PCIe bridge chip. If you plug the card in to a 'normal' PCIe slot, the PCIe bridge chip combines the two SATA controllers and switches between them as required. This leads to slower (but still good) performance. However, if you switch on PCIe Bifurcation (sometimes called PCIe RAID) so your 4x slot is split in to two 2x slots, then the bridge chip isn't used and you can control each Marvell SATA controller seperately.I'm running this card on an Asus B550XE motherboard with a Ryzen 5 5600G APU, base OS is Proxmox, and the card (2x Marvell) are passed through to a TrueNAS SCALE VM. I get ~200MB/s reads and writes on 4 drives (2 drive per controller).In conculsion, set it up correctly and it works just fine.
1.0 out of 5 stars Not actually PCIe x4 - slow and bottlenecked
Although this controller claims to be PCIe x4 and has a x4 connector, the PCIe switch chip it uses (ASMedia ASM1806) has only two PCIe lanes for its upstream link (to the motherboard) and four PCIe lanes for downstream links (to the SATA controller chips). However each of the two Marvell controller chips is connected by only a single PCIe x1 lane.Being a PCIe 2.0 device, each lane should support 500MB/sec transfer rate, but according to Linux's 'lspci' command, the upstream lanes had downgraded their link speed to 250MB/sec, further limiting throughput. Two upstream lanes at 250MB/sec means a limit of 500MB/sec for the whole PCI card.If you're intending to run multiple SATA SSDs on this card for use in a ZFS RAIDZ volume, as I was, there will be a serious bottleneck when attempting to read or write to more then two devices at the same time. I ran a test reading data from a single SSD and it sustained 407MB/sec. As soon as I started a second concurrent read from a second SSD, the throughput of each was only about 210MB/sec. The same thing happened when the two test SSDs were connected to different Marvell controller chips. For comparison, the same pair of SSDs sustained about 550MB/sec each simultaneously when connected to an LSI 9211 controller.
Amazing card for an older server running TrueNas (FreeNas)
Super simple to install, cabling is great for a NAS as there are two cables branching out into 8 "ends", simplifies cable management! I installed this in an older HP Proliant ML150 G6 and it got automatically recognized, no drivers to install.
Simple et efficace
Comme attendu, reconnu nativement par TrueNASLors d'opération de nettoyage (scrub ZFS), le radiateur chauffe pas mal, mais pas de souci de stabilité
Ojo con la compatibilidad con la bios. Por lo demás era lo esperado.
Por alguna incompatibilidad, la Bios de mi ordenador no reconoce el multiplicador pcie, por lo que solo funcionaba uno de los dos puertos (4 sata). No era defecto de la tarjeta, porque en otro ordenador iba ok, pero... yo la quería montar en el primero.
Free Nas fantastic
Got it for my Freenas setup works great 😊
Linux Horribilus
I purchased this card for use in a new R5-2600x based Ubuntu 20.04 headless box for serving KVM virtual machines and bulk storage. I chose it because it was listed (at the time) as Linux compatible.I hooked up my 5 2TB RAID5 storage drives to this card and my server would crash and lockup on boot. I talked to Syba's tech support and they told me the card had failed so I should return it which I did. The second card did the same thing. I called tech support again and they told me they didn't support Linux so they couldn't help me.I returned the second card and purchased an LSI card and quality cables for $30 less which worked first try.Don't waste your time and money on this card. It looks good on paper but in practice is Linux Horribilus.
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Product origin: United Kingdom
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