Vadzo Imaging Validates Dual Endpoint USB streaming and Onboard Storage on MerlinPlus-521CRS 5MP AR0521 USB 2.0 Camera

Vadzo Imagi g has Highlights the Me li Plus-521CRS, a 5MP AR0521 USB 2.0 Came a desig ed fo OEMs a d embedded visio i teg ato s equi i g simulta eous live video st eami g a d local eco di g f om a si gle compact came a platfo m. Built a ou d the o semi AR0521 image se so , the came a combi es USB 2.0 UVC co ectivity, Dual E dpoi t St eami g, O boa d Sto age, GPIO co ectivity a d M12/S-Mou t optics fo i teg atio ac oss secu ity, su veilla ce, sma t i f ast uctu e a d embedded imagi g applicatio s

IRVINE, CA / ACCESS Newswi e / August 18, 2026 / Vadzo Imagi g, a global p ovide of embedded visio solutio s, has validated dual e dpoi t USB st eami g a d o -boa d eco di g o the Me li Plus-521CRS, a AR0521 5MP USB 2.0 Came a built a ou d the O semi AR0521 CMOS se so . The Me li Plus-521CRS is desig ed fo OEMs a d system i teg ato s who eed Dual E dpoi t St eami g a d O boa d Sto age i a si gle, compact USB 2.0 sto age came a module, without addi g a seco d captu e device o a exte al eco di g applia ce to the system.

Tech ical P oblem Defi itio

E gi ee s buildi g a dashcam USB came a module, a black box sto age came a, a eve t eco de came a module, a body came a sto age module, o a fleet eco di g came a platfo m all e cou te the same a chitectu al co flict. A live video feed fo mo ito i g o a alytics competes with local eco di g fo the same USB e dpoi t a d the same p ocessi g budget. A sta da d si gle-st eam USB came a ca se ve a live view o w ite f ames to local sto age, but coo di ati g both f om o e e dpoi t typically equi es host-side softwa e to split, buffe , a d e-e code the st eam, addi g CPU load a d failu e poi ts u acceptable i a sta dalo e eco di g came a mea t to keep wo ki g whe the host co ectio d ops. This dual dema d u s ac oss ma kets that appea u elated o the su face. Secu ity came a a d su veilla ce came a i stallatio s eed co ti uous local eco di g as a fallback to etwo k video ma ageme t. Medical device came a a d patie t ca e came a systems must log i to a cli ical e cou te locally while st eami g to a mo ito i g statio . Telematics platfo ms eed a fleet eco di g came a to keep a local loop eco di g came a fu ctio u i g i depe de t of a cellula upli k. Local sto age USB came a desig s that solve this at the applicatio laye athe tha i fi mwa e i he it whateve i stability the host ope ati g system i t oduces, the exact failu e mode a ha dwa e-level dual-st eam USB came a is mea t to emove.

E gi ee i g Expla atio

The Me li Plus-521CRS is built o the O semi AR0521 CMOS Se so , a 1/2.5-i ch optical fo mat se so with 2.2 µm x 2.2 µm pixels p oduci g a maximum esolutio of (2592) by (1944) pixels, 5MP. This se so a d ISP combi atio positio s the Me li Plus-521CRS as a O semi 5MP USB 2.0 Came a platfo m suited to applicatio s that eed low- oise 5MP AR0521 Came a output without a global shutte p emium. The AR0521 Se so uses a olli g shutte eadout, exposi g a d eadi g each ow seque tially athe tha esetti g the full a ay at o ce, which keeps cost a d powe d aw low fo static o mode ate motio sce es such as a fixed medical device came a o a statio a y secu ity came a, while equi i g atte tio to olli g shutte a tifacts i high motio captu e. Pai ed with a high-pe fo ma ce ISP, the O semi AR0521 Came a platfo m i the Me li Plus-521CRS is tu ed fo low- oise output at both 1080p a d 720p esolutio s, givi g i teg ato s a lowe -ba dwidth 720p mode fo co st ai ed USB 2.0 li ks alo gside full 1080p captu e whe li k ba dwidth allows. USB Video Class complia ce mea s the AR0521 USB Came a e ume ates as a sta da d UVC device o Wi dows a d Li ux without a p op ieta y d ive , while the o boa d a chitectu e adds two capabilities a plai UVC se so module lacks, Dual E dpoi t St eami g a d O boa d Sto age, both impleme ted i came a fi mwa e athe tha host softwa e.

P oduct Ove view

The Vadzo Me li Plus-521CRS packages the AR0521 5MP USB Came a o a compact two boa d stack measu i g 38mm by 38mm a d weighi g 11 g ams without le s, co ecti g to a host th ough a USB 2.0 Mic o-B i te face a d d awi g powe di ectly f om the USB bus with o sepa ate powe i put equi ed. As a AR0521 5MP Colo USB Came a, the platfo m pai s full 5MP colo captu e with the same Dual E dpoi t St eami g a d O boa d Sto age capabilities athe tha t adi g esolutio o colo fidelity fo local eco di g suppo t. Optics u th ough a S-Mou t M12 le s i te face with a 74-deg ee diago al field of view le s fitted as sta da d, givi g i teg ato s a familia le s mou ti g sta da d fo field-of-view cha ges without a custom optical edesig . A GPIO co ecto is available fo exte al t igge a d sig al i teg atio , exte di g the came a i to eve t-d ive captu e wo kflows. The came a is ated fo a -30°C to 70°C ope ati g tempe atu e a ge a d ca ies UVC complia ce alo g with RoHS 3 a d REACH co fo mity. The platfo m suppo ts Wi dows, Li ux, a d A d oid i teg atio equi i g a additio al SDK laye beyo d the ative UVC d ive stack used o Wi dows a d Li ux.

Key Capabilities

Dual E dpoi t St eami g fo Simulta eous Live Output a d Local Captu e: Most si gle st eam UVC modules fo ce a choice betwee a live feed to the host applicatio a d a locally w itte eco di g file, equi i g the host to duplicate, e code, o elay the st eam if both outputs a e eeded at o ce. The Me li Plus-521CRS add esses this di ectly as a Dual E dpoi t St eami g Came a, exposi g two i depe de t video e dpoi ts f om the same AR0521 se so a d ISP pipeli e so a live mo ito i g o a alytics applicatio a d a local eco di g path ca both pull f ames allowi g simulta eous live st eami g a d local eco di g f om a si gle came a platfo m. Fo a 5MP Dual St eam USB Came a a chitectu e like this, a secu ity came a i stallatio ca se d a live feed to a video ma ageme t wo kstatio while the same came a i depe de tly etai s footage locally, a d a patie t ca e came a deployme t ca st eam a cli ical mo ito i g view while keepi g a i depe de t local eco d of the same e cou te . This Dual Video St eam Came a behavio mea s both outputs o igi ate f om the same UVC Dual St eam Came a fi mwa e athe tha a host side split, so The came a sepa ates live st eami g a d local eco di g at the came a level, educi g the eed fo host-side st eam duplicatio a d eco di g logic, givi g system i teg ato s a 5MP Dual St eam Came a fou datio fo applicatio s that eed both outputs u i g co ti uously.

O boa d Sto age fo Sta dalo e Local Data Rete tio : The Me li Plus-521CRS pai s Dual E dpoi t St eami g with O boa d Sto age, givi g the came a a O boa d Sto age Came a capability fo local data ete tio that does ot depe d o a host applicatio stayi g co ected o a etwo k li k stayi g up. U like a ge e ic o boa d SD ca d came a a chitectu e whe e sto age medium a d ca d capacity sit outside the se so a d fi mwa e pipeli e, the Me li Plus-521CRS ties O boa d Sto age di ectly to the same Dual E dpoi t St eami g pipeli e that ha dles the live feed. This makes the Me li Plus-521CRS a p actical AR0521 Sto age Came a fo sta dalo e eco di g came a use cases, i cludi g o boa d eco di g came a deployme ts whe e the eco di g fu ctio has to keep u i g th ough a d opped USB co ectio , a ebooti g host, o a i te upted etwo k path, the same ope ati g co ditio a fleet eco di g came a o dashcam USB came a module e cou te s o a movi g vehicle, a d the same co ditio a body came a sto age module o eve t eco de came a module e cou te s i the field. As a 5MP O boa d Sto age Came a, the Me li Plus-521CRS keeps a local eco di g came a path active i depe de t of the live st eami g e dpoi t, givi g i teg ato s a local eco di g USB came a a d loop eco di g came a fou datio without addi g a seco d captu e device o a black box sto age came a e closu e.

S-Mou t Optics a d GPIO fo Field Co figu able I teg atio : The Me li Plus-521CRS ships with S-Mou t M12 optics a d a 74-deg ee diago al field of view le s as the default co figu atio , a mou ti g sta da d i teg ato ca swap withi the same M12 family to adjust field of view fo a give i stall dista ce without edesig i g the came a boa d. The o boa d GPIO co ecto exte ds the AR0521 Colo USB Came a platfo m i to t igge d ive a d eve t sy ch o ized captu e sce a ios, letti g a exte al se so o co t olle i itiate a captu e o eco di g eve t athe tha elyi g solely o co ti uous f ee u st eami g. Combi ed with the -30°C to 70°C ope ati g a ge, this co figu atio suppo ts a Plug a d Play Sto age Came a deployme t ac oss i doo a d less climate-co t olled i stalls whe e a boa d level module must u without a e closu e level the mal buffe .

P oduct Specificatio s

“OEM teams keep aski g fo a USB 2.0 sto age came a that does ot fo ce a t adeoff betwee a live feed a d a local eco di g path. The Me li Plus-521CRS gives them Dual E dpoi t St eami g a d O boa d Sto age o the same AR0521 se so platfo m, so a secu ity i stall, a patie t mo ito i g statio , o a fleet eco di g deployme t gets both outputs f om o e boa d i stead of stitchi g togethe a came a, a captu e ca d, a d a sepa ate eco de . Said Alwi Vi ce t, P oduct Ma age , Vadzo Imagi g.

Ta get Applicatio s

Secu ity a d Su veilla ce: Secu ity a d su veilla ce came a i stallatio s ofte ely o co ti uous local eco di g as a fallback whe a etwo k of video ma ageme t co ectio is i te upted. As a dual-st eam USB came a suited to secu ity a d su veilla ce deployme t, the Me li Plus-521CRS keeps a local eco di g path u i g th ough its O boa d Sto age capability while Dual E dpoi t St eami g keeps a live feed available to the mo ito i g wo kstatio , without equi i g a sepa ate DVR o captu e applia ce at each i stall poi t.

Medical Imagi g a d Patie t Ca e: A medical device a d patie t ca e came a used fo cli ical mo ito i g o p ocedu e docume tatio typically eeds a local, i depe de tly etai ed eco d of the e cou te i additio to whateve live view a mo ito i g statio eceives. The Me li Plus-521CRS O boa d Sto age keeps that local eco d i tact eve if the live st eami g sessio is i te upted, while its compact two-boa d fo m facto a d USB 2.0 i te face suit i teg atio i to space-co st ai ed medical device came a a d patie t ca e came a housi gs.

Sma t City a d Sma t Pa ki g: Sma t pa ki g came a Deployme ts ac oss a mu icipal footp i t be efit f om a local eco di g USB came a capability that keeps footage available o site eve whe e co ectivity to a ce t al mo ito i g system is i te mitte t. The Me li Plus-521CRS o boa d eco di g came a fu ctio suppo ts this di ectly, a d its -30°C to 70°C ope ati g a ge a d compact fo m facto The compact came a platfo m ca be i teg ated i to app op iately p otected outdoo a d semi-outdoo systems

Telematics a d Fleet Ma ageme t: Fleet eco di g came a a d dashcam USB came a module deployme ts eed a local, sta dalo e eco di g came a capability that keeps ope ati g th ough cellula d opouts, ig itio cycli g, a d vehicle vib atio , i depe de t of whateve live feed a fleet mo ito i g platfo m eceives. The Me li Plus-521CRS Dual E dpoi t St eami g a d O boa d Sto age give telematics i teg ato s both a eve t eco de came a module-style local ete tio path a d a live st eami g e dpoi t f om the same AR0521 5MP came a boa d, without stacki g a sepa ate black box sto age came a o body came a sto age module o to the vehicle platfo m.

SDK / Softwa e Suppo t

The Me li Plus-521CRS is UVC complia t, so Wi dows a d Li ux hosts e ume ate the AR0521 USB 2.0 Came a as a sta da d video captu e device without a p op ieta y d ive , letti g i teg ato s b i g the came a i to a existi g UVC based captu e pipeli e with sta da d OS level tools. A d oid i teg atio equi es a additio al SDK laye , si ce ative UVC suppo t va ies by device a d OS ve sio , a d Vadzo p ovides that additio al SDK path fo A d oid-based OEM sto age came a module deployme ts. GPIO access fo t igge ed captu e is exposed at the ha dwa e level fo develope s buildi g a ou d the Dual E dpoi t St eami g a d O boa d Sto age capabilities.

About Vadzo Imagi g

Vadzo Imagi g develops embedded a d machi e visio came a p oducts fo OEMs a d system i teg ato s buildi g p oductio – eady visio systems. The compa y offe s imagi g platfo ms ac oss USB, MIPI CSI-2, Gigabit Ethe et, a d Wi-Fi i te faces suppo ti g applicatio s i secu ity su veilla ce, sma t city i f ast uctu e, etail automatio , medical device i teg atio , obotics, a d i dust ial automatio . Vadzo p ovides e d-to-e d imagi g suppo t i cludi g se so i teg atio , ISP tu i g, fi mwa e developme t, a d SDK f amewo ks that accele ate developme t a d simplify deployme t fo OEM custome s.

F eque tly Asked Questio s

Q: What is a dual-e dpoi t st eami g USB came a a d why does it matte fo OEM desig s?

A: A dual-e dpoi t st eami g USB came a exposes two i depe de t video paths f om a si gle se so a d image pipeli e, o e i te ded fo a live feed to a mo ito i g o a alytics applicatio a d o e i te ded fo local eco di g, so both ca u at the same time without the host applicatio splitti g o e-e codi g a si gle st eam. This matte s fo OEM desig s because a co ve tio al si gle st eam UVC came a fo ces the host softwa e to duplicate the i comi g video if both a live view a d a local eco di g a e equi ed, addi g CPU load a d a pote tial poi t of failu e if the host p ocess ha dli g that split c ashes o disco ects. As a AR0521 5MP USB Came a, the Vadzo Imagi g Me li Plus-521CRS impleme ts Dual E dpoi t St eami g at the came a fi mwa e level o its O semi AR0521 se so platfo m, so a secu ity, medical device, o fleet eco di g deployme t gets a live feed a d a i depe de t local eco di g path f om o e USB 2.0 came a boa d athe tha f om host-side softwa e.

Q: How does o boa d sto age diffe f om a exte al DVR o captu e ca d fo local video eco di g?

A: O boa d sto age places the eco di g fu ctio di ectly o the came a boa d, w iti g captu ed f ames to local sto age without outi g them th ough a sepa ate DVR, captu e ca d, o eco di g applia ce co ected to the host system. This emoves depe de cy. The local eco di g path keeps u i g eve if the host applicatio closes, the etwo k co ectio d ops, o the captu e ca d d ive fails, because the eco di g logic lives o the came a athe tha dow st eam of it. A exte al DVR o captu e ca d, by compa iso , o ly eco ds what the host successfully fo wa ds to it, so a y i te uptio betwee the came a a d that exte al device b eaks the eco di g. Vadzo Imagi g Me li Plus-521CRS uses O boa d Sto age o its 5MP AR0521 se so platfo m, keepi g local data ete tio active i depe de t of the live st eami g sessio , which is a mea i gful diffe e ce fo sta dalo e eco di g came a deployme ts i vehicles, emote i stalls, o a y e vi o me t whe e the host co ectio ca ot be gua a teed co ti uously available.

Q: What ope ati g tempe atu e a ge should a boa d-level USB came a suppo t fo outdoo o vehicle deployme t?

A: A boa d level USB came a fo outdoo , vehicle, o semi outdoo deployme t eeds a ope ati g a ge wide e ough to cove cold sta t co ditio s a d sustai ed heat buildup i side a e closu e o vehicle cabi , spa i g well below f eezi g o the low e d a d well above oom tempe atu e o the high e d. Falli g sho t o eithe e d isks image deg adatio , se so oise i c eases, o ope atio al failu e du i g seaso al ext emes o e gi e compa tme t-adjace t mou ti g. The Vadzo Me li Plus-521CRS is ated fo a -30°C to 70°C ope ati g tempe atu e a ge o its O semi AR0521 5MP se so platfo m, givi g i teg ato s ma gi fo cold outdoo mo i gs a d wa m e closed mou ti g positio s alike without equi i g suppleme tal heati g o cooli g at the boa d level, a p actical co side atio fo sma t pa ki g, fleet, a d outdoo secu ity came a i stalls built a ou d this came a.

Q: What is the diffe e ce betwee a olli g shutte a d a global shutte fo a 5MP CMOS came a se so ?

A: A olli g shutte se so exposes a d eads each ow of the pixel a ay seque tially athe tha simulta eously, keepi g se so cost, powe d aw, a d pixel size lowe tha a equivale t global shutte desig but i t oduci g skew a tifacts whe the subject o came a moves quickly du i g exposu e. A global shutte se so exposes eve y pixel at the same i sta t, avoidi g that skew e ti ely, at the cost of additio al pe -pixel ci cuit y that typically i c eases se so size, cost, a d powe co sumptio fo the same esolutio . Fo static o mode ate motio sce es such as a fixed secu ity i stall, a patie t mo ito i g statio , o a pa ked vehicle eco di g, a olli g shutte se so is usually the mo e costly a d powe -efficie t choice. The O semi AR0521 se so used i the Vadzo Me li Plus-521CRS is a olli g shutte 5MP se so , positio ed fo these lowe motio use cases whe e its cost a d powe adva tage outweighs the t adeoff, athe tha fo high-speed machi e visio i spectio whe e global shutte is typically equi ed.

Q: Do o boa d sto age USB came a p oducts equi e a mi imum o de qua tity fo OEM evaluatio ?

A: Mi imum o de equi eme ts fo o boa d sto age of USB came a p oducts va y by supplie , a d ma y came a ve do s set mi imum o de qua tities that make small batch evaluatio difficult fo e gi ee i g teams befo e committi g to p oductio volume. Vadzo Imagi g ope ates without a mi imum o de qua tity equi eme t, so e gi ee i g teams ca obtai a si gle evaluatio u it of the Me li Plus-521CRS to validate Dual E dpoi t St eami g, O boa d Sto age, a d USB 2.0 UVC i teg atio o thei ow host platfo m befo e scali g to a p oductio o de . This lets OEM teams buildi g dashcam, secu ity, medical device, o fleet eco di g platfo ms co fi m se so pe fo ma ce, sto age behavio , a d d ive compatibility o eal ha dwa e, a d Vadzo suppo ts both si gle u it evaluatio a d volume p oductio th ough the same cha el.

Availability

The Me li Plus-521CRS 5MP AR0521 USB 2.0 Came a is available ow fo evaluatio To equest a evaluatio u it o discuss OEM i teg atio equi eme ts fo Dual E dpoi t St eami g, O boa d Sto age, o GPIO t igge ed captu e co figu atio s. Full specificatio s, SDK docume tatio , a d the p oduct page a e available at vadzo’s came a po tfolio spa s MIPI CSI-2, USB, GigE, Wi-Fi, a d Se Des i te faces, suppo ti g a wide a ge of embedded deployme t a chitectu es. Vadzo p ovides e d-to-e d imagi g suppo t i cludi g se so i teg atio , ISP tu i g, fi mwa e developme t, a d SDK f amewo ks. Lea mo e at www.vadzoimagi g.com.

About Vadzo Imagi g

Vadzo Imagi g develops embedded a d machi e visio came a p oducts fo OEMs a d system i teg ato s buildi g p oductio – eady visio systems. The compa y offe s imagi g platfo ms ac oss USB, MIPI CSI-2, Gigabit Ethe et, a d Wi-Fi i te faces suppo ti g applicatio s i secu ity su veilla ce, sma t city i f ast uctu e, etail automatio , medical device i teg atio , obotics, a d i dust ial automatio . Vadzo p ovides e d-to-e d imagi g suppo t i cludi g se so i teg atio , ISP tu i g, fi mwa e developme t, a d SDK f amewo ks that accele ate developme t a d simplify deployme t fo OEM custome s.

Media Co tactAlwi Vi ce tVadzo Imagi gEmail: [email p otected]Li kedI : Vadzo Imagi gYouTube: Vadzo Imagi gX: Vadzo Imagi g

SOURCE: Vadzo Imagi g