SATAPMH141-SE - 1-to-4 SATA Port Multiplier 3Gbps | IOI
Teilenummer: SATAPMH141-SE ✓ Aktiv| Menge | Stückpreis | Gesamt |
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| 1 | $0 | $0,00 |
| 10 | $0 | $0,00 |
| 100 | $0 | $0,00 |
| 500 | $0 | $0,00 |
| 1.000 | $0 | $0,00 |
SATAPMH141-SE Übersicht
A SATA port multiplier is a storage interconnect device that expands a single host SATA controller port into multiple device-facing SATA ports. In the storage hierarchy it sits between the host SATA controller (AHCI or FIS-based switching) and SATA disk drives or SSDs, aggregating traffic so that one physical host link serves several devices. This reduces host controller count in multi-drive systems such as NAS enclosures, RAID chassis, and storage appliances.
Key features of the SATAPMH141 include its unique data aggregation capability, which lets the module exploit the full 3Gbps host link bandwidth when paired with FIS-based switching host controllers, and its support for up to four device ports simultaneously. The -SE suffix denotes a specific configuration variant within the SATAPMH141 product family from IOI (I/O Interconnect), which specializes in SATA and SAS connectivity hardware.
Architecturally, the Marvell 88SM8040 handles command frame (FIS) switching between host and devices, frame arbitration, and port state management, presenting each drive as a distinct SATA device to the host. Performance is bounded by the shared 3Gbps host link, so sustained aggregate throughput peaks at roughly 300 MB/s across all drives combined.
Typical applications include multi-bay external drive enclosures, NAS backplane designs, low-cost RAID expansion, and industrial storage subsystems where host SATA ports are scarce. The module form factor allows direct integration onto carrier boards.
A key design consideration: allocate bandwidth across attached drives carefully, since the host link is shared - concurrent heavy access to four drives will divide the 3Gbps link. Verify that your host controller supports FIS-based switching for best aggregation; command-based switching hosts offer lower effective bandwidth.
This page synthesizes manufacturer product data, drop-in alternatives, application guidance, and design notes not found on the standard manufacturer product listing.
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SATAPMH141-S
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SATAPMH141-SE Spezifikationen (herstellerveröffentlicht)
| Product Type | SATA Port Multiplier Module |
| Host Controller IC | Marvell 88SM8040 |
| Host Ports | 1 SATA host port + 1 SEMB port |
| Device Ports | 4 SATA device ports |
| Serial Link Speed | 3 Gbps per SATA link |
| Switching Mode Support | FIS-based switching |
| Interface Standard | SATA II (3 Gbps) compliant |
| Data Aggregation | Yes - full 3Gbps host link utilization |
| Montageart | Board-to-board / module mount |
| RoHS-Status | unknown |
SATAPMH141-SE Schnittstellen & Anschlüsse
Für SATAPMH141-SE ist keine vom Hersteller veröffentlichte Schnittstellenliste verfügbar. Details zu Anschlüssen und Headern finden Sie in der Herstellerdokumentation.
Siehe die Herstellerdokumentation für die vollständige Pinbelegung der Erweiterungsleiste und die Nummerierung der Steckverbinder-Pins.
Typische Anwendungen
SATAPMH141-SE ist geeignet für 6 Anwendungs: Multi-Bay NAS Enclosures, External Multi-Drive Enclosures, Industrial Storage Subsystems, Low-Cost RAID Expansion, Storage Test and Burn-In Fixtures, Legacy System SATA Port Expansion.
Multi-Bay NAS Enclosures
The SATAPMH141-SE fits NAS enclosure designs where the host board provides a limited number of SATA ports but must support four drive bays. Its Marvell 88SM8040 core expands a single 3Gbps host link to four device ports, and the SEMB port enables enclosure management signaling for drive activity and fault LEDs. Because all four drives share the 3Gbps host link, aggregate bandwidth tops out near 300 MB/s - well matched to home and small-office NAS workloads dominated by streaming and sequential backup. Place the module between the host AHCI controller and drive backplane, and confirm the host supports FIS-based switching so IOI's data aggregation capability is fully exploited. Power budgeting is minimal since the port multiplier draws only a few hundred milliwatts, well below drive power.
Empfohlen
External Multi-Drive Enclosures
Consumer and prosumer external enclosures with a single eSATA or USB-to-SATA bridge connection use port multipliers to expose multiple internal drives over one link. The SATAPMH141-SE's 3Gbps serial links on all four device ports and its FIS-based switching support make it a standard choice here, as many USB-to-SATA bridge ICs implement command-based or FIS-based PMP modes. The module form factor simplifies integration into the enclosure mainboard, requiring only the host link and four device connectors. Designers should confirm the bridge IC's port multiplier compatibility early - mismatched switching modes are the most common field failure mode in these products. With 3Gbps shared bandwidth, four drives each see roughly 75 MB/s under concurrent load, adequate for archive and backup use cases.
Empfohlen
Industrial Storage Subsystems
Industrial PCs, DVR/NVR surveillance systems, and embedded data loggers frequently need more SATA ports than their chipset provides. The SATAPMH141-SE offers a compact, IC-vendor-supported path from one chipset SATA port to four drives without consuming PCIe lanes or adding a RAID controller card. Its Marvell 88SM8040 handles FIS switching autonomously, appearing to the host as a standard port multiplier supported by mainstream operating systems and AHCI drivers. For surveillance recording - largely sequential writes split across drives - the 3Gbps shared link typically provides sufficient headroom for several concurrent camera streams. Confirm the chipset's PMP support and validate thermal conditions inside sealed industrial enclosures where drive and ambient temperatures are elevated.
Empfohlen
Low-Cost RAID Expansion
For capacity-oriented RAID levels (RAID 1, 5, 6) where redundancy rather than raw bandwidth is the goal, the SATAPMH141-SE allows a single host port to manage four array members. The Marvell 88SM8040's data aggregation capability, per IOI documentation, takes full advantage of the 3Gbps host link with FIS-based switching controllers, maximizing rebuild and write throughput within the link constraint. Software RAID stacks (mdadm, ZFS, Storage Spaces) treat multiplier-attached drives as independent members. Note that degraded-mode performance and rebuild times are bounded by the shared link, so rebuild windows will be longer than with native multi-port controllers - acceptable for arrays prioritizing data safety and cost over speed.
Empfohlen
Storage Test and Burn-In Fixtures
Drive qualification and burn-in stations benefit from the SATAPMH141-SE's ability to attach four SATA drives through one host port, multiplying test-station density without extra host controllers. Each drive appears as an independent SATA device, so standard test harnesses (smartctl, fio, vendor burn-in tools) run against all four in parallel. The 3Gbps links are fully SATA II compliant, suitable for testing both legacy and modern drives operating at reduced link rates. FIS-based switching keeps command queues efficient during concurrent I/O. Fixture designers should provide stable power sequencing to all four device connectors and verify the host controller enumerates all ports reliably during power-on, since port multiplier enumeration is a common source of boot-order issues in automated test environments.
Empfohlen
Legacy System SATA Port Expansion
Older motherboards and embedded SBCs with one or two SATA II ports can be expanded with the SATAPMH141-SE instead of adding PCIe storage controllers, which may not be available on legacy buses. The module requires only a standard SATA host link, so it upgrades legacy systems to multi-drive capability with minimal redesign. Because the module is 3Gbps-native, it matches the host's own SATA II link speed exactly - there is no performance penalty versus the host's native rate. Verify the legacy system's OS and AHCI driver support port multipliers; Linux and Windows with modern drivers handle this transparently, while some very old BIOS-era controllers in IDE-emulation mode will not. This makes it an economical upgrade path for installed-base systems requiring additional storage capacity.
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Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für SATAPMH141-SE – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | SATAPMH141-S |
|---|---|---|
| Package | SATA port multiplier module | SATA port multiplier module - same family |
| Brand | IOI | IOI |
| Controller IC | Marvell 88SM8040 | Marvell 88SM8040 |
| Host Ports | 1 SATA + 1 SEMB | 1 SATA + 1 SEMB |
| Device Ports | 4 | 4 |
| Link Speed | 3 Gbps | 3 Gbps |
| FIS-based Switching | Supported | Supported |
| Data Aggregation | Yes | Yes |
| Configuration Suffix | -SE | -S |
Wichtigste Unterscheidungsmerkmale
- Identical Marvell 88SM8040 core across the SATAPMH141 family (vs. SATAPMH141-S)
- FIS-based switching with data aggregation (vs. Generic port multiplier ICs without aggregation support)
- Module-level integration versus bare IC design-in (vs. Standalone Marvell 88SM8040 IC)
Designhinweise
All SATA links on the SATAPMH141-SE run at 3Gbps and require controlled-impedance (100 ohm differential) routing on the host and device traces. Keep host-link and device-link trace lengths matched within the pair and route away from switching regulators and clock lines. Per IOI product data, the module supports FIS-based switching - verify the host controller's PMP mode before layout, since command-based switching hosts will reduce effective aggregate bandwidth even though the hardware operates correctly.
The most frequent integration issue with port multiplier modules is host-side incompatibility, not module failure. Some AHCI controllers and older BIOS configurations disable port multiplier support or expose devices only in IDE-emulation mode where PMP does not work. Validate that the host enumerates all four device ports and the SEMB port during bring-up before committing to volume production. Also remember the four device ports share one 3Gbps host link - concurrent drive access divides that bandwidth roughly four ways.
Estimated: the Marvell 88SM8040-class port multiplier silicon typically consumes a few hundred milliwatts, which is minor next to the 5-10W per spinning drive behind it. Design the module's supply rail and connector power pins for the full drive load (4 drives), not the port multiplier itself. Provide a common power sequencing scheme so all drives come up cleanly; staggered spin-up control through the SEMB or host PM commands reduces inrush current in battery or low-power enclosure designs.
Compliance-Informationen
Compliance declarations were not present in the verified web data. Request RoHS/REACH certificates from IOI directly via the product page.