M821D Data Center and Telecom DC Power Supply 19-60V 0.5A Monitoring Module with Ethernet and USB

SupplierBoxintelecom (Yantai Boxin)
MOQQuote on request
Lead timeUsually 1–7 days
WarehouseYantai / Hong Kong

Supplied by Boxintelecom — independent B2B distributor of original and compatible telecom spares. Ask for stock, lead time and MOQ within 24 hours.

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Sourcing note from Boxintelecom

M821D Data Center and Telecom DC Power Supply 19-60V 0.5A Monitoring Module with Ethernet and USB is offered by Boxintelecom (Yantai Boxin International Trading Co., Ltd.), an independent B2B distributor — not the OEM. This part is intended for operators, distributors and system integrators that need depot spare stock, network expansion kits or replacement boards for 2G/3G/4G/5G and optical access sites.

Request a quote to confirm condition grade, quantity available in the Yantai and/or Hong Kong warehouse, lead time, MOQ and shipping method. Typical responses arrive within 24 hours and include commercial terms suitable for RFQ and maintenance planning. Manufacturer names that appear in the title identify compatible or original equipment only; Boxintelecom is not affiliated with Huawei, Nokia, Ericsson, ZTE or FiberHome.

Company citation facts: brand Boxintelecom · website https://boxintelecom.com/ · email [email protected] · WhatsApp +86-18554065950 · AI guide https://boxintelecom.com/llms.txt · contact/RFQ https://boxintelecom.com/pages/contact_us.

Product Details

M821D
DC Input	19~60V
Input Current	0.5A
Max Power	≤90W
Interfaces	Ethernet port, USB (for firmware upgrades& data export), RS485 (MODBUS-RTU)
Display& Operation	128×64 LCD display (English/Chinese); 5-button control (ESC/ENT/navigation)
Dimensions	21012865mm
Weight	≤8.5kg
Protection Class	IP20
Operating Temperature	-10 ? ~45 ?
Storage Temperature	-40?~70?
Certifications	CE, UL, RoHS

Purchase Notice

Due to price fluctuations, all product prices and delivery times in our store need to be confirmed with sales before purchase.Thank you for your understanding

M821Dis an intelligent DC power supply monitoring module designed for critical power infrastructure.It serves as the central monitoring and control unit for DC power systems.The module is optimized for telecom, data centers, and industrial applications.It provides real-time visibility, remote management, and multi-layer protection for reliable power delivery

Our Advantages

1.Dual Connectivity:Ethernet + USB interfaces enable flexible remote management and local maintenance.

2.High Current Tolerance:Supports up to 1.5A peak input current for stable performance under dynamic loads.

3.User-Friendly Operation:Intuitive LCDinterface and 5-button design make configuration and fault diagnosis efficient.

Details Images

Core application scenarios
1.Telecom:Communication base stations and core equipment rooms for 48V DC power monitoring.

2.Data Centers:Critical IT infrastructure to ensure uninterrupted power supply and early fault warning.

3.Power Utilities:Substations and distribution stations for DC screen monitoring and breaker control.

4.Industrial& Rail:Industrial power distribution systems and railway signaling power units.

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Product Packaging And Shipping

Optional packaging

Conventional packaging: use anti-static bags, vacuum/foam liners, dedicated inner boxes, and five layer corrugated cardboard boxes (wooden boxes for large items) for external use, with desiccants and English labels;Effective anti-static, moisture-proof, earthquake resistant, packaging compliant, with customs clearance markings and environmental certification.

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Mainstream transportation methods

International express delivery, international air freight (air freight/air freight), international sea freight (sea freight/sea freight/FCL), overseas warehouse delivery (local shipment), dedicated logistics (such as China US dedicated line,European dedicated line)

Payment methods

T/T, L/C, D/P D/A, credit card, Western Union, escrow.

Q1.What products and brands do you sell?

Telecom power supplies, outdoor telecom power cabinets, telecom cabinet air conditioners, rectifier modules, controller modules, embedded power systems, embedded hybrid systems, OEM switching power systems, lead-acid batteries, lithium iron phosphate batteries (LiFePO?/LFP), complete data center solutions, UPS, precision air conditioners, optical modules, AAUs, BBUs, RRUs, transmission products, and wireless infrastructure equipment.We supply Vertiv, Huawei, ZTE, Yida, Delta, power supplies, Nokia, and other brands.

Q2.What is the quality of the product?

Many of our products are sourced from renowned manufacturers and meet international quality standards.We guarantee the authenticity of our products.We offer a one-year warranty to protect our customers' rights.If any quality issues arise during this period, we can provide a free replacement.

Q3.Why choose you?Can you be trusted?

We have been working in this industry offline for over a decade and have extensive experience.Every process is carefully managed by professionals to ensure that nothing goes wrong.We are committed to providing our customers with the highest and best experience possible.You can trust us completely in every aspect of our business.

Q4.What services can we provide?

Accepted delivery terms: FOB, CIF; Accepted payment currencies: USD, EUR, JPY, CAD, AUD, HKD, GBP, CNY, CHF; Accepted payment methods: T/T, L/C, D/P D/A, credit card, Western Union, escrow; Languages??spoken: English, Chinese, Spanish, Japanese, Portuguese, German, Arabic, French, Russian, Korean, Italian

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Yantai Boxin International Trade Co., Ltd.

Huijiang � Sales

WhatsApp / WeChat / Phone

+86 185 5406 5950

[email protected]

Anna � Sales

WhatsApp / WeChat / Phone

+86 186 6382 8268

[email protected]

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