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Silver rectangular server power supply unit with front fan grille and rear connector panel

TRENDnet

TRENDnet TI-RSP100048 1000W 48V DC 21A server power supply

SKU CH-8DW0-YKDNT MPN TI-RSP100048

Delivers 1000W at 48V DC with 94% efficiency, active PFC, full protection suite and a -25 to 70°C operating range

  • Key features• Industrial power supply; Compatible with 4U 19 in Rackmoun
  • Delivers 1000W at 48V DC with 21A output for demanding industrial equipment
  • 94% high efficiency reduces power dissipation and lowers operating costs
  • Active Power Factor Correction improves power quality and system stability
  • Comprehensive protections include short circuit, overload, over voltage and over temperature
  • UL 508 approved and operates from -25°C to 70°C for harsh environments

Industrial 1000W 48V DC power supply

The TRENDnet TI-RSP100048 delivers up to 1000W at 48V DC with a 21A output rating. It is built for industrial equipment such as PoE switches and wireless access points. The unit fits 4U 19-inch rackmount chassis like the TI-R4U, which is sold separately. High efficiency of 94% keeps power dissipation low in continuous operation.

Check rack space and DC load requirements

Verify that your rack enclosure provides a 4U 19-inch slot and that the connected devices accept a 48V DC input. The supply includes a built-in DC OK relay contact for remote monitoring. Active power factor correction is integrated, so no external PFC stage is needed. Ensure the operating temperature range of -25°C to 70°C matches the installation environment.

Sustained load behaviour with forced-air cooling

Built-in DC fans provide forced-air cooling to maintain stable output during prolonged full-load runs. The unit has passed a 100% full-load burn-in test and carries UL 508 approval. Protections against short circuit, overload, over voltage and over temperature activate automatically under sustained stress. Efficiency remains at 94% across the load range, limiting heat buildup over time.

How it compares

Measured against everything we stock in Server & Hot-Plug PSUs, at today’s prices. Recalculated every night.

Price $447.99
Pricier than about 90% of the 3,798 comparable items (median $131.99).

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Specifications

Product
Brand nameTRENDnet
Model nameTI-RSP100048
Size & build
Shipping weight2.27 kg
Package size178 × 152 × 102 mm

Questions about this item

What comes in the box with the TI-RSP100048 and what must be purchased separately?

The package contains the 1000W 48V DC 21A power supply with built-in DC fans and a DC OK relay contact; the compatible 4U 19" rackmount TI-R4U enclosure is sold separately.

How do I choose between the available versions or capacities of this power supply?

The TI-RSP100048 is offered as a single 1000W 48V DC 21A model; there are no alternative wattage or voltage versions listed for this part number.

What does the 94% efficiency figure mean once the unit is installed in a real machine?

At full 1000W output the supply converts 94% of input power to usable DC, so waste heat is limited and operating temperatures stay within the -25°C to 70°C range.

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