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ES-257

ACTIVE
Brainboxes

Ethernet to Serial Adapter Card RS-232

In full production. No end-of-life notice on file.

ES-257 is an Ethernet to Serial Adapter Card RS-232 from Brainboxes. 1 authorized distributor quotes it on TracedParts, from RM 838.37 at quantity 1, with 0 units in stock, so it ships on factory lead time. Figures come from the distributors' own APIs, pulled in the catalogue snapshot of 2026-09-25, and are indicative rather than a binding quote.

RoHS COMPLIANTREACH - SMD
BEST PRICE @1
RM 838.37
DigiKey · authorized
TOTAL STOCK
0
1 source
SHORTEST LEAD
on request
factory lead · no stock
AUTHORIZED
1 / 1
tier 1 sources

Who has ES-257 in stock, and what does it cost?

1 authorized distributor · pulled from their APIs in the catalogue snapshot of 2026-09-25
QTY pcs
DISTRIBUTOR
STOCK
MOQ
PRICE BREAKS · MYR
LEAD
@250 PCS
TIER 1 - AUTHORIZED DISTRIBUTORfranchised - full warranty - paperwork QA will accept
AUTH
0
1
1+838.3700
on request
no stock
RM 838.3700
RM 209,592.50 total
Buy ↗
What 250 pcs actually costs landed in Malaysia, duty and SST included: RM 232,860.12 RM 931.4405 per unit, DDP · estimate Open estimator →

What are the specifications of ES-257?

13 parameters▾
Device specification
TypeEthernet to Serial
InterfaceRS-232
Number of Ports2
Ordering & compliance
ManufacturerBrainboxes
CategorySerial Device Servers
Package-
MountingSurface mount
LifecycleACTIVE
RoHSCompliant
Moisture levelNot applicable (through hole)
PackagingTape & reel
Country of origin
HS code

Where can I download the ES-257 datasheet?

link supplied by DigiKey▾
PDF
ES-257 datasheet
link supplied by DigiKey · Brainboxes · English
Open datasheet ↗

This is the datasheet link the distributor returned with the part record. We pass it through as they gave it, and we have not opened it - there are more than 300,000 of these and we verify only the ones we curate by hand. If it does not resolve, that is the distributor’s record, not the part.

What does ES-257 cost landed in Malaysia?

Malaysia · DDP · HS ▾
Goods
Freight · express 2 d
Import duty · 0 % (ITA-exempt)
Sales & service tax · 6 %
Customs clearance
Landed total

Estimate only. The correct HS classification for your import is your responsibility - see terms of service.

Is there a CAD symbol and footprint for ES-257?

4 downloads▾
SCHEMATIC SYMBOL · .libPCB FOOTPRINT · .kicad_mod 3D MODEL · .stepSPICE · .mod

What can I use instead of ES-257?

3 in serial device servers▾
UD1100NL2-01
Lantronix, Inc.
Ethernet to Serial Adapter Card RS-232/422/485…
4,369,615
RM 840.31
ES-420
Brainboxes
Ethernet to Serial Adapter Card RS-422/485…
4,381,269
RM 842.55
SE5202-SFP-TB
ATOP Technologies
Ethernet to Serial Adapter Card RS-232/422/485…
4,393,386
RM 844.88

Nearest peers by price within the same category. Confirm the parameters before you substitute - these are not guaranteed drop-in replacements.

Which parts are similar to ES-257?

8 parts▾
700018517000186270001777AW02-G300-GLB203231XT-NANO-SXLXSDRIN-03MT100SEM-IP.R1-SP

Common questions about ES-257

7 questions▾
Is ES-257 in stock?
Not currently. DigiKey quotes ES-257 but hold no stock, so it ships on factory lead time. Confirm the lead time with the distributor before you commit.
How much does ES-257 cost?
RM 838.3700 is the lowest unit price on this page, from DigiKey. Prices fall as quantity rises; the full price break ladder is in the quotes table. Figures come from the distributor API and are indicative, not a binding quote.
Who supplies ES-257?
DigiKey. It is authorized, franchised distributor quoting through its own API. TracedParts carries no broker or open-market listings.
How old are these prices?
The catalogue is re-pulled from the distributors' APIs once a day, and the line under the Quotes heading says which pull the figures on this page came from. Prices and stock can move between pulls, so treat them as indicative and confirm on the distributor's site before you order.
Who quoted these prices?
Every row on the site comes from an authorized, franchised distributor through its own API: DigiKey, Mouser or element14. There are no broker or open-market listings on TracedParts. If a source ever changes, the row will say so.
Why do you show the source before the price?
Because who sold it decides what happens at incoming inspection, and a table sorted by price alone hides that. Rows are grouped by the distributor's status first and ordered by unit price inside the group.
Why are prices in ringgit?
Distributors quote in US dollars. TracedParts converts to MYR at a fixed reference rate that is printed on the page, not a live FX feed, so the ringgit figure is a sourcing estimate rather than the amount you will be billed.