# Motherboard ASUS PRIME B660M-A D4-CSM Intel B660 LGA 1700 micro ATX

**URL:** https://aio.lv/en/product--asus-90mb19k0-m1eayc--8121856
**Data updated:** 2025-12-30 06:12 (EET)
**Category:** Motherboards
**Manufacturer:** Asus
**Manufacturer code:** 90MB19K0-M1EAYC
**EAN:** 4711081508045
**Warranty:** 2 Years
**Availability:** Available for order
**Price:** 110.99 €
**Prices and availability valid until:** 2026-07-31 23:59
**Price without VAT (21%):** 91.73 EUR
**Can be purchased by legal entities:** Yes (invoice)
**Buy:** https://aio.lv/en/product--asus-90mb19k0-m1eayc--8121856

## Delivery options

| Delivery method | Delivery time | Cost |
|---|---|---|
| Office pickup (2b. Kengaraga str., Riga, Latvia, LV-1063) | 16.07.2026 | free |
| Pickup points | 21.07.2026 | 1.89 EUR |
| Courier delivery to door | 21.07.2026 | 4.99 EUR |

## Summary description

The ASUS PRIME B660M-A D4-CSM motherboard features an Intel B660 chipset and LGA 1700 socket, supporting Intel® Celeron® and Core™ processors up to i9. It supports DDR4 memory with a maximum capacity of 128 GB and offers multiple storage interfaces including M.2 and SATA III for HDD and SSD drives. With RAID support and Gigabit Ethernet, this micro ATX motherboard is ideal for building a powerful PC.

## Long description

The ASUS PRIME B660M-A D4-CSM is a micro ATX motherboard based on the Intel B660 chipset with an LGA 1700 socket. It supports Intel Celeron and Core processors (up to Core i9), four DDR4 memory slots for up to 128 GB, and provides multiple storage interfaces including two M.2 slots (PCIe 4.0, up to 64 Gbps) and SATA III connectors. Designed for business and system integrators, the board is part of the ASUS Corporate Stable Model (CSM) program, which includes up to 36 months of product lifecycle support and a 6-month end-of-life notice; each purchase includes ASUS Control Center Express IT management software.
Advantages
The PRIME B660M-A D4-CSM combines stable long-term support from the ASUS CSM program with a range of features for reliable everyday performance: robust power delivery with ProCool connectors and Digi+ VRM control, flexible cooling options with multiple heatsinks and Fan Xpert 2+ controls, and fast storage and expansion through PCIe 4.0 and two high-speed M.2 slots. Enterprise-oriented features include LANGuard network protection, overvoltage and DRAM overcurrent protection, and a stainless-steel back I/O for improved durability.
Suitable for
Business desktops and corporate workstations
Small form-factor builds and micro ATX systems
Systems requiring long-term product lifecycle support and IT management
Workloads needing reliable cooling and stable power for 12th Gen Intel CPUs
Key specifications
Form factor: Micro ATX
Chipset: Intel B660
Socket: LGA 1700 (12th Gen Intel CPUs compatible)
Memory: 4 × DDR4 slots, up to 128 GB, DDR4 5333(OC) support
Expansion: PCIe 4.0 x16 slot(s) for GPU, two PCIe slots total
Storage: 2 × M.2 slots (up to 64 Gbps via PCIe 4.0), SATA III ports
Networking: LANGuard-enhanced Gigabit Ethernet
Special features: ASUS CSM program, ASUS Control Center Express, SafeSlot Core+, Q-LED Core, Aura Sync RGB headers
How to use
Install the motherboard into a compatible micro ATX case and connect a compatible LGA 1700 processor, DDR4 memory modules (up to 128 GB across four slots), storage devices (M.2 and SATA drives), power supply using the ProCool 8‑pin CPU connector and the main 24‑pin ATX connector, and your GPU into the PCIe 4.0 slot if required. Configure cooling via Fan Xpert 2+ in Windows or adjust fan and power settings in the UEFI BIOS; enable EZ XMP to optimize DRAM performance. Use the bundled ASUS Control Center Express for centralized IT monitoring and management where applicable.
Usage recommendations
For stable operation and longevity in business environments, use a high-quality PSU with the required ProCool connectors, keep BIOS and firmware updated via ASUS Control Center Express or scheduled updates, and ensure adequate case airflow or appropriate AIO/water cooling when running high-core-count 12th Gen Intel processors.

## Specifications

### Features

| Feature | Value |
|---|---|
| Motherboard form factor | Micro ATX |
| Motherboard chipset | Intel B660 |
| Component for | PC |
| Audio output channels | 7.1 |
| Cooling type | Passive |
| Windows operating systems supported | Windows 11, Windows 10 |
| Motherboard chipset family | Intel |

### Processor

| Feature | Value |
|---|---|
| Processor manufacturer | Intel |
| Maximum number of SMP processors | 1 |
| Compatible processor series | Intel Celeron, Intel Core i3, Intel Core i5, Intel Core i7, Intel Core i9, Intel Pentium Gold |
| Processor socket | LGA 1700 |

### Memory

| Feature | Value |
|---|---|
| Number of memory slots | 4 |
| Maximum internal memory | 128 GB |
| Supported memory types | DDR4-SDRAM |
| Supported memory clock speeds | 3466, 3333, 2133, 2400, 2666, 2800, 2933, 3000, 3200, 3400, 5333, 3600, 3733, 4000, 4266, 4400, 4600, 4800, 5000 |
| Memory channels | Dual-channel |
| Memory slots type | DIMM |
| Supported memory clock speed (max) | 5333 MHz |
| ECC сompatibility | non-ECC |

### Expansion slots

| Feature | Value |
|---|---|
| PCI Express x16 (Gen 3.x) slots | 2 |
| Number of M.2 (M) slots | 2 |
| PCI Express x16 (Gen 4.x) slots | 1 |

### Network

| Feature | Value |
|---|---|
| Ethernet LAN | Yes |
| Wi-Fi | No |
| Ethernet interface type | Gigabit Ethernet |

### Internal I/O

| Feature | Value |
|---|---|
| USB 2.0 connectors | 3 |
| S/PDIF out connector | Yes |
| CPU fan connector | Yes |
| ATX Power connector (24-pin) | Yes |
| Number of chassis fan connectors | 2 |
| Front panel audio connector | Yes |
| Power fan connector | Yes |
| TPM connector | Yes |
| EPS power connector (8-pin) | Yes |
| USB 3.2 Gen 1 (3.1 Gen 1) connectors | 3 |
| Number of SATA III connectors | 4 |
| RGB LED pin header | Yes |

### Rear panel I/O ports

| Feature | Value |
|---|---|
| PS/2 ports quantity | 1 |
| USB 2.0 ports quantity | 4 |
| Ethernet LAN (RJ-45) ports | 1 |
| HDMI ports quantity | 2 |
| DisplayPorts quantity | 1 |
| USB 3.2 Gen 1 (3.1 Gen 1) Type-C ports quantity | 2 |

### Storage controllers

| Feature | Value |
|---|---|
| RAID levels | 1, 5, 10 |
| Supported storage drive types | HDD & SSD |
| RAID support | Yes |
| Number of storage drives supported | 6 |
| Supported storage drive interfaces | SATA III, M.2 |

### BIOS

| Feature | Value |
|---|---|
| BIOS memory size | 128 Mbit |
| BIOS type | UEFI AMI |

### Weight & dimensions

| Feature | Value |
|---|---|
| Width | 244 mm |
| Depth | 244 mm |

### Other features

| Feature | Value |
|---|---|
| Number of HDDs supported | 4 |
| Audio chip | Realtek ALC897 |

### Packaging content

| Feature | Value |
|---|---|
| Cables included | SATA |

## FAQ

### How much does the Motherboard ASUS PRIME B660M-A D4-CSM, 90MB19K0-M1EAYC cost, and is it available for purchase?

The price is 110.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 105 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 16.07.2026 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, Bank cards on-line, Apple Pay, Google Pay, Installment. All transactions are 100% secure and encrypted.

### Can Motherboard ASUS PRIME B660M-A D4-CSM, 90MB19K0-M1EAYC be purchased with a lease?

Yes, the purchase is available both on credit and with an interest-free installment plan. Learn more about installments and credit options: https://aio.lv/en/payment#b3

### 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 Asus 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 Asus 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

### How can I tell if this product suits my needs?

When making a choice, we recommend paying attention to the key features: motherboard form factor, motherboard chipset, component for, processor socket, number of memory slots, maximum internal memory, pci express x16 (gen 3.x) slots, supported memory types, compatibility with your devices or usage conditions, material quality, functionality, and warranty terms. These characteristics will help you determine how well the model meets your needs.

### Where can I download the instructions for Motherboard ASUS PRIME B660M-A D4-CSM, 90MB19K0-M1EAYC?

You can download the instructions in PDF format from the “Instructions” section on the product description page. The file contains complete information about installation, setup, and usage.

## Image

https://aio.lv/img/cache/product/8121856/65425008_large.webp