# Internal Mini-SAS interface card adapter Lenovo ISG 4Y37A78837 — PCIe host, Mini-SAS output, 12 Gbit/s

**URL:** https://aio.lv/en/product--lenovo-4y37a78837--11641125
**Data updated:** 2025-12-31 11:23 (EET)
**Category:** Server Parts & Components
**Manufacturer:** Lenovo
**Manufacturer code:** 4Y37A78837
**EAN:** 0889488634774
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 685.49 €
**Prices and availability valid until:** 2026-07-25 23:59
**Price without VAT (21%):** 566.52 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--lenovo-4y37a78837--11641125

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 09.07.2026 | free |
| Pickup points | 14.07.2026 | 1.89 EUR |
| Courier delivery to door | 14.07.2026 | 4.99 EUR |

## Summary description

Lenovo ISG 4Y37A78837 is an internal Mini-SAS interface card/adapter for servers. It connects to a PCIe host (male) and provides a Mini-SAS output with up to 12 Gbit/s transfer rate. Certified for multiple regions (FCC Part 15 Class A, AS/NZS CISPR 22, ICES-003 Class B). Supplied as a single unit, suited for server storage connectivity and expansion.

## Long description

The Lenovo ISG 4Y37A78837 is an internal Mini‑SAS interface card adapter designed for server storage connectivity. It installs into a PCIe host slot and provides Mini‑SAS external connections with up to 12 Gbit/s transfer rate, enabling attachment of external storage enclosures and tape drives compatible with Mini‑SAS. The adapter is supplied as a single unit and is certified for multiple regions (FCC Part 15 Class A, AS/NZS CISPR 22, ICES‑003 Class B).
Advantages
The adapter offers PCIe 4.0 host connectivity combined with Mini‑SAS HD external ports to deliver high throughput for external storage. It supports common server storage features such as S.M.A.R.T. monitoring and is purpose-built for ThinkSystem servers and compatible storage arrays. Compact connector layout provides either two or four x4 external Mini‑SAS HD links depending on the model, allowing flexible external expansion at 12 Gbit/s per link.
Suitable for
Connecting external storage enclosures (e.g., Lenovo ThinkSystem DE Series)
Attaching LTO tape libraries and drives
Expanding server storage capacity via external JBODs
Server environments requiring 12 Gbit/s SAS connectivity
Key specifications
Brand: Lenovo
Model / MPN: 4Y37A78837
Form factor: Internal PCIe adapter
Host interface: PCIe (PCIe 4.0 compatible)
Output interface: Mini‑SAS HD external connectors (two or four x4 links depending on variant)
Transfer rate: Up to 12 Gbit/s per link
Certifications: FCC Part 15 Class A, AS/NZS CISPR 22, ICES‑003 Class B
Supplied quantity: 1 unit
How to use
Power down the server and install the adapter into an available PCIe slot following the server manufacturer's instructions. Secure the card, connect compatible Mini‑SAS HD external cables from the adapter's external ports to the target storage enclosure or tape device, and then power on the system. Install or verify appropriate drivers and firmware on the host operating system and confirm device recognition in the server management utilities. For best results, use certified Mini‑SAS cables and ensure firmware compatibility between adapter and external storage.
Usage recommendations
Use this Mini‑SAS adapter in server racks with compatible ThinkSystem storage or other certified SAS enclosures. Match cable length and shielding to your environment, keep firmware up to date, and follow Lenovo's installation and safety guidelines to ensure reliable 12 Gbit/s external connectivity.

## Specifications

| Feature | Value |
|---|---|
| Internal | Yes |
| Certification | FCC Part 15 Class A
 Australia/New Zealand (AS/NZS CISPR 22)
 Canada (ICES-003 Class B)
 Europe (EN55022/EN55024)
 Japan (VCCI V-3)
 Korea (RRA no 2013-24 & 25)
 RoHS compliant
 EN/IEC/UL 60950
 Taiwan (CNS 13438)
 USA (FCC 47 CFR part 15 Subpart B class B)
 WEEE |
| Operating relative humidity (H-H) | 20 - 90 |
| Storage temperature (T-T) | -40 - 70 |
| Operating temperature (T-T) | 10 - 55 |
| Storage relative humidity (H-H) | 5 - 95 |
| Product colour | Multicolour |
| Host interface | PCIe |
| Purpose | Server |
| S.M.A.R.T. support | Yes |
| Windows operating systems supported | Y |
| Linux operating systems supported | Y |
| Output interface | Mini-SAS |
| Data transfer rate (max) | 12 Gbit/s |
| Quantity per pack | 1 pc(s) |
| Expansion card standard | PCIe 4.0 |
| Expansion card form factor | Low-profile |
| Host interface gender | Male |

## FAQ

### How much does the Internal Mini-SAS adapter Lenovo ISG 4Y37A78837 cost, and is it available for purchase?

The price is 685.49 € (valid at the time of publication and already includes all taxes). The item is available for order — 3 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

### If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 09.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

### What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Leasing for legal entities. All transactions are 100% secure and encrypted.

### Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

### What is the warranty period?

All Lenovo products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized Lenovo service centers and through AiO.lv

### Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

### Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. More information about warranty service: https://aio.lv/en/warranty

## Image

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